diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa59cc65..8719c9fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # offline-editor-js - Changelog
 
+## Version 3.1.0 - April 21, 2016
+
+No breaking changes.
+
+**Bug Fixes**
+* Closes #458 - old prototype extension causing breaking failures.
+
 ## Version 3.0.7 - April 14, 2016
 
 No breaking changes.
diff --git a/dist/offline-edit-advanced-min.js b/dist/offline-edit-advanced-min.js
index 219753bc..8c23c456 100644
--- a/dist/offline-edit-advanced-min.js
+++ b/dist/offline-edit-advanced-min.js
@@ -1,6 +1,3 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
 Offline.options={checks:{image:{url:function(){return"http://esri.github.io/offline-editor-js/tiny-image.png?_="+Math.floor(1e9*Math.random())}},active:"image"}},define(["dojo/Evented","dojo/_base/Deferred","dojo/promise/all","dojo/_base/declare","dojo/_base/array","dojo/dom-attr","dojo/dom-style","dojo/query","esri/config","esri/layers/GraphicsLayer","esri/graphic","esri/request","esri/symbols/SimpleMarkerSymbol","esri/symbols/SimpleLineSymbol","esri/symbols/SimpleFillSymbol","esri/urlUtils"],function(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p){"use strict"
 return d("O.esri.Edit.OfflineEditAdvanced",[a],{_onlineStatus:"online",_featureLayers:{},_featureCollectionUsageFlag:!1,_editStore:new O.esri.Edit.EditStore,_defaultXhrTimeout:15e3,ONLINE:"online",OFFLINE:"offline",RECONNECTING:"reconnecting",attachmentsStore:null,proxyPath:null,ENABLE_FEATURECOLLECTION:!1,DB_NAME:"features_store",DB_OBJECTSTORE_NAME:"features",DB_UID:"objectid",ATTACHMENTS_DB_NAME:"attachments_store",ATTACHMENTS_DB_OBJECTSTORE_NAME:"attachments",events:{EDITS_SENT:"edits-sent",EDITS_ENQUEUED:"edits-enqueued",EDITS_ENQUEUED_ERROR:"edits-enqueued-error",EDITS_SENT_ERROR:"edits-sent-error",ALL_EDITS_SENT:"all-edits-sent",ATTACHMENT_ENQUEUED:"attachment-enqueued",ATTACHMENTS_SENT:"attachments-sent"},initAttachments:function(a){if(a=a||function(a){},!this._checkFileAPIs())return a(!1,"File APIs not supported")
 try{if(this.attachmentsStore=new O.esri.Edit.AttachmentsStore,this.attachmentsStore.dbName=this.ATTACHMENTS_DB_NAME,this.attachmentsStore.objectStoreName=this.ATTACHMENTS_DB_OBJECTSTORE_NAME,!this.attachmentsStore.isSupported())return a(!1,"indexedDB not supported")
diff --git a/dist/offline-edit-advanced-src.js b/dist/offline-edit-advanced-src.js
index 1792708c..b42ed02b 100644
--- a/dist/offline-edit-advanced-src.js
+++ b/dist/offline-edit-advanced-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
+/*! esri-offline-maps - v3.1.0 - 2016-04-21
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 // Configure offline/online detection
diff --git a/dist/offline-edit-basic-min.js b/dist/offline-edit-basic-min.js
index 6ecb206a..764596be 100644
--- a/dist/offline-edit-basic-min.js
+++ b/dist/offline-edit-basic-min.js
@@ -1,6 +1,3 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
 Offline.options={checks:{image:{url:function(){return"http://esri.github.io/offline-editor-js/tiny-image.png?_="+Math.floor(1e9*Math.random())}},active:"image"}},define(["dojo/Evented","dojo/_base/Deferred","dojo/promise/all","dojo/_base/declare","dojo/_base/array","dojo/dom-attr","dojo/dom-style","dojo/query","dojo/on","esri/config","esri/layers/GraphicsLayer","esri/layers/FeatureLayer","esri/graphic"],function(a,b,c,d,e,f,g,h,i,j,k,l,m){"use strict"
 return d("O.esri.Edit.OfflineEditBasic",[a],{_onlineStatus:"online",_featureLayers:{},_editStore:new O.esri.Edit.EditStorePOLS,_defaultXhrTimeout:15e3,_autoOfflineDetect:!0,ONLINE:"online",OFFLINE:"offline",RECONNECTING:"reconnecting",proxyPath:null,DB_NAME:"features_store",DB_OBJECTSTORE_NAME:"features",DB_UID:"objectid",events:{EDITS_SENT:"edits-sent",EDITS_ENQUEUED:"edits-enqueued",EDITS_ENQUEUED_ERROR:"edits-enqueued-error"},constructor:function(a){a&&a.hasOwnProperty("autoDetect")&&(this._autoOfflineDetect=a.autoDetect)},extend:function(a,d){var f=[],g=this
 a.offlineExtended=!0,!a.loaded||null===a._url,a.objectIdField=this.DB_UID
diff --git a/dist/offline-edit-basic-src.js b/dist/offline-edit-basic-src.js
index 0d9aca04..206b5e7d 100644
--- a/dist/offline-edit-basic-src.js
+++ b/dist/offline-edit-basic-src.js
@@ -1,4 +1,4 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
+/*! esri-offline-maps - v3.1.0 - 2016-04-21
 *   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
 *   Apache License*/
 // Configure offline/online detection
diff --git a/dist/offline-tiles-advanced-min.js b/dist/offline-tiles-advanced-min.js
index e917efe2..a94b1e23 100644
--- a/dist/offline-tiles-advanced-min.js
+++ b/dist/offline-tiles-advanced-min.js
@@ -1,8 +1,5 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
 define(["dojo/query","dojo/request","dojo/_base/declare","esri/layers/LOD","esri/geometry/Point","esri/geometry/Extent","esri/layers/TileInfo","esri/SpatialReference","esri/geometry/Polygon","esri/layers/TiledMapServiceLayer"],function(a,b,c,d,e,f,g,h,i,j){"use strict"
-return c("O.esri.Tiles.OfflineTilesAdvanced",[j],{tileInfo:null,_imageType:"",_level:null,_minZoom:null,_maxZoom:null,_tilesCore:null,_secure:!1,constructor:function(a,b,c,d){this._isLocalStorage()===!1&&(alert("OfflineTiles Library not supported on this browser."),b(!1)),void 0===d||null===d?(this.DB_NAME="offline_tile_store",this.DB_OBJECTSTORE_NAME="tilepath",this.offline_id_manager="offline_id_manager"):(this.DB_NAME=d.dbName,this.DB_OBJECTSTORE_NAME=d.objectStoreName,void 0===d.offlineIdManager||null===d.offlineIdManger?this.offline_id_manager="offline_id_manager":this.offline_id_manager=d.offlineIdManager),this._tilesCore=new O.esri.Tiles.TilesCore,Array.prototype.sortNumber=function(){return this.sort(function(a,b){return a-b})},this._self=this,this._lastTileUrl="",this._imageType="",this._getTileUrl=this.getTileUrl
+return c("O.esri.Tiles.OfflineTilesAdvanced",[j],{tileInfo:null,_imageType:"",_level:null,_minZoom:null,_maxZoom:null,_tilesCore:null,_secure:!1,constructor:function(a,b,c,d){this._isLocalStorage()===!1&&(alert("OfflineTiles Library not supported on this browser."),b(!1)),void 0===d||null===d?(this.DB_NAME="offline_tile_store",this.DB_OBJECTSTORE_NAME="tilepath",this.offline_id_manager="offline_id_manager"):(this.DB_NAME=d.dbName,this.DB_OBJECTSTORE_NAME=d.objectStoreName,void 0===d.offlineIdManager||null===d.offlineIdManger?this.offline_id_manager="offline_id_manager":this.offline_id_manager=d.offlineIdManager),this._tilesCore=new O.esri.Tiles.TilesCore,this._self=this,this._lastTileUrl="",this._imageType="",this._getTileUrl=this.getTileUrl
 var e=!0
 return"undefined"==typeof c&&null==c||(e=c),this.showBlankTiles=!0,this.offline={online:e,store:new O.esri.Tiles.TilesStore,proxyPath:null},this.offline.store.isSupported()?(this.offline.store.dbName=this.DB_NAME,this.offline.store.objectStoreName=this.DB_OBJECTSTORE_NAME,this.offline.store.init(function(c){c&&this._getTileInfoPrivate(a,function(a){b(a)})}.bind(this._self)),void 0):b(!1,"indexedDB not supported")},getTileUrl:function(b,c,d){this._level=b
 var e,f=this,g=window.localStorage[this.offline_id_manager]
@@ -33,8 +30,7 @@ return d<<16|65535&c},O.esri.Tiles.Base64Utils.stringToWord=function(a){for(var
 return d},O.esri.Tiles.Base64Utils.wordToString=function(a){for(var b=8,c=(1<<b)-1,d=[],e=0,f=32*a.length;f>e;e+=b)d.push(String.fromCharCode(a[e>>5]>>>e%32&c))
 return d.join("")},O.esri.Tiles.Base64Utils.wordToHex=function(a){for(var b="0123456789abcdef",c=[],d=0,e=4*a.length;e>d;d++)c.push(b.charAt(a[d>>2]>>d%4*8+4&15)+b.charAt(a[d>>2]>>d%4*8&15))
 return c.join("")},O.esri.Tiles.Base64Utils.wordToBase64=function(a){for(var b="=",c="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",d=[],e=0,f=4*a.length;f>e;e+=3)for(var g=(a[e>>2]>>8*(e%4)&255)<<16|(a[e+1>>2]>>8*((e+1)%4)&255)<<8|a[e+2>>2]>>8*((e+2)%4)&255,h=0;4>h;h++)8*e+6*h>32*a.length?d.push(b):d.push(c.charAt(g>>6*(3-h)&63))
-return d.join("")},/*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */
-O.esri.Tiles.saveAs=function(a){"use strict"
+return d.join("")},O.esri.Tiles.saveAs=function(a){"use strict"
 var b=a.document,c=function(){return a.URL||a.webkitURL||a},d=a.URL||a.webkitURL||a,e=b.createElementNS("http://www.w3.org/1999/xhtml","a"),f=!a.externalHost&&"download"in e,g=a.webkitRequestFileSystem,h=a.requestFileSystem||g||a.mozRequestFileSystem,i=function(b){(a.setImmediate||a.setTimeout)(function(){throw b},0)},j="application/octet-stream",k=0,l=[],m=function(){for(var a=l.length;a--;){var b=l[a]
 "string"==typeof b?d.revokeObjectURL(b):b.remove()}l.length=0},n=function(a,b,c){b=[].concat(b)
 for(var d=b.length;d--;){var e=a["on"+b[d]]
diff --git a/dist/offline-tiles-advanced-src.js b/dist/offline-tiles-advanced-src.js
index 33a8cbfe..f47768f7 100644
--- a/dist/offline-tiles-advanced-src.js
+++ b/dist/offline-tiles-advanced-src.js
@@ -1,6 +1,6 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
+/*! esri-offline-maps - v3.1.0 - 2016-04-21
+*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
+*   Apache License*/
 define([
     "dojo/query",
     "dojo/request",
@@ -51,9 +51,6 @@ define([
 
             this._tilesCore = new O.esri.Tiles.TilesCore();
 
-            //For calculating minZoom and maxZoom
-            Array.prototype.sortNumber = function(){return this.sort(function(a,b){return a - b;});};
-
             this._self = this;
             this._lastTileUrl = "";
             this._imageType = "";
@@ -566,7 +563,7 @@ define([
             req.send(null);
         }
     }); // declare
-}); // define
+}); // define
 /**
  * Creates a namespace for the non-AMD libraries in this directory
  */
@@ -581,7 +578,7 @@ else{
     };
 }
 
-//"use strict";
+//"use strict";
 /*jslint bitwise: true */
 
 O.esri.Tiles.Base64Utils={};
@@ -663,7 +660,7 @@ O.esri.Tiles.Base64Utils.wordToBase64=function(/* word[] */wa){
     return s.join("");	//	string
 };
 
-/*jslint bitwise: false */
+/*jslint bitwise: false */
 /* FileSaver.js
  * A saveAs() FileSaver implementation.
  * 2013-10-21
@@ -900,7 +897,7 @@ O.esri.Tiles.saveAs =
 
 //if (typeof module !== 'undefined') module.exports = saveAs;
 
-
+
 /**
  * This library contains common core code between OfflineTilesBasic.js
  * and OfflineTilesAdvanced.js
@@ -1295,7 +1292,7 @@ O.esri.Tiles.TilesCore = function(){
 };
 
 
-
+
 
 /*global indexedDB */
 /**
@@ -1557,7 +1554,7 @@ O.esri.Tiles.TilesStore = function(){
     };
 };
 
-
+
 O.esri.Tiles.TilingScheme = function (layer) {
     this.tileInfo = layer.tileInfo;
 };
diff --git a/dist/offline-tiles-basic-min.js b/dist/offline-tiles-basic-min.js
index 54a79cc9..f83c8aa7 100644
--- a/dist/offline-tiles-basic-min.js
+++ b/dist/offline-tiles-basic-min.js
@@ -1,6 +1,3 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
 define(["dojo/query","dojo/request","esri/geometry/Polygon","dojo/_base/declare"],function(a,b,c,d){"use strict"
 return d("O.esri.Tiles.OfflineTilesBasic",[],{getBasemapLayer:function(a){var b=a.layerIds[0]
 return a.getLayer(b)},extend:function(c,d,e,f){c._tilesCore=new O.esri.Tiles.TilesCore,c._lastTileUrl="",c._imageType="",c._minZoom=null,c._maxZoom=null,void 0===f||null===f?(c.DB_NAME="offline_tile_store",c.DB_OBJECTSTORE_NAME="tilepath"):(c.DB_NAME=f.dbName,c.DB_OBJECTSTORE_NAME=f.objectStoreName),c._getTileUrl=c.getTileUrl
@@ -22,8 +19,7 @@ return d<<16|65535&c},O.esri.Tiles.Base64Utils.stringToWord=function(a){for(var
 return d},O.esri.Tiles.Base64Utils.wordToString=function(a){for(var b=8,c=(1<<b)-1,d=[],e=0,f=32*a.length;f>e;e+=b)d.push(String.fromCharCode(a[e>>5]>>>e%32&c))
 return d.join("")},O.esri.Tiles.Base64Utils.wordToHex=function(a){for(var b="0123456789abcdef",c=[],d=0,e=4*a.length;e>d;d++)c.push(b.charAt(a[d>>2]>>d%4*8+4&15)+b.charAt(a[d>>2]>>d%4*8&15))
 return c.join("")},O.esri.Tiles.Base64Utils.wordToBase64=function(a){for(var b="=",c="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",d=[],e=0,f=4*a.length;f>e;e+=3)for(var g=(a[e>>2]>>8*(e%4)&255)<<16|(a[e+1>>2]>>8*((e+1)%4)&255)<<8|a[e+2>>2]>>8*((e+2)%4)&255,h=0;4>h;h++)8*e+6*h>32*a.length?d.push(b):d.push(c.charAt(g>>6*(3-h)&63))
-return d.join("")},/*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */
-O.esri.Tiles.saveAs=function(a){"use strict"
+return d.join("")},O.esri.Tiles.saveAs=function(a){"use strict"
 var b=a.document,c=function(){return a.URL||a.webkitURL||a},d=a.URL||a.webkitURL||a,e=b.createElementNS("http://www.w3.org/1999/xhtml","a"),f=!a.externalHost&&"download"in e,g=a.webkitRequestFileSystem,h=a.requestFileSystem||g||a.mozRequestFileSystem,i=function(b){(a.setImmediate||a.setTimeout)(function(){throw b},0)},j="application/octet-stream",k=0,l=[],m=function(){for(var a=l.length;a--;){var b=l[a]
 "string"==typeof b?d.revokeObjectURL(b):b.remove()}l.length=0},n=function(a,b,c){b=[].concat(b)
 for(var d=b.length;d--;){var e=a["on"+b[d]]
diff --git a/dist/offline-tiles-basic-src.js b/dist/offline-tiles-basic-src.js
index b77b31ab..dc6f9335 100644
--- a/dist/offline-tiles-basic-src.js
+++ b/dist/offline-tiles-basic-src.js
@@ -1,6 +1,6 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
+/*! esri-offline-maps - v3.1.0 - 2016-04-21
+*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
+*   Apache License*/
 define([
     "dojo/query",
     "dojo/request",
@@ -394,7 +394,7 @@ define([
     }); // declare
 }); // define
 
-
+
 /**
  * Creates a namespace for the non-AMD libraries in this directory
  */
@@ -409,7 +409,7 @@ else{
     };
 }
 
-//"use strict";
+//"use strict";
 /*jslint bitwise: true */
 
 O.esri.Tiles.Base64Utils={};
@@ -491,7 +491,7 @@ O.esri.Tiles.Base64Utils.wordToBase64=function(/* word[] */wa){
     return s.join("");	//	string
 };
 
-/*jslint bitwise: false */
+/*jslint bitwise: false */
 /* FileSaver.js
  * A saveAs() FileSaver implementation.
  * 2013-10-21
@@ -728,7 +728,7 @@ O.esri.Tiles.saveAs =
 
 //if (typeof module !== 'undefined') module.exports = saveAs;
 
-
+
 /**
  * This library contains common core code between OfflineTilesBasic.js
  * and OfflineTilesAdvanced.js
@@ -1123,7 +1123,7 @@ O.esri.Tiles.TilesCore = function(){
 };
 
 
-
+
 
 /*global indexedDB */
 /**
@@ -1385,7 +1385,7 @@ O.esri.Tiles.TilesStore = function(){
     };
 };
 
-
+
 O.esri.Tiles.TilingScheme = function (layer) {
     this.tileInfo = layer.tileInfo;
 };
diff --git a/dist/offline-tpk-min.js b/dist/offline-tpk-min.js
index 4f2d3735..ae7c08a5 100644
--- a/dist/offline-tpk-min.js
+++ b/dist/offline-tpk-min.js
@@ -1,6 +1,3 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
 define(["dojo/_base/declare","esri/geometry/Extent","dojo/query","esri/SpatialReference","esri/layers/TileInfo","esri/layers/TiledMapServiceLayer","dojo/Deferred","dojo/promise/all","dojo/Evented"],function(a,b,c,d,e,f,g,h,i){return a("O.esri.TPK.TPKLayer",[f,i],{map:null,store:null,MAX_DB_SIZE:75,TILE_PATH:"",RECENTER_DELAY:350,PARSING_ERROR:"parsingError",DB_INIT_ERROR:"dbInitError",DB_FULL_ERROR:"dbFullError",NO_SUPPORT_ERROR:"libNotSupportedError",PROGRESS_START:"start",PROGRESS_END:"end",WINDOW_VALIDATED:"windowValidated",DB_VALIDATED:"dbValidated",DATABASE_ERROR_EVENT:"databaseErrorEvent",VALIDATION_EVENT:"validationEvent",PROGRESS_EVENT:"progress",_maxDBSize:75,_isDBWriteable:!0,_isDBValid:!1,_autoCenter:null,_fileEntriesLength:0,_inMemTilesObject:null,_inMemTilesObjectLength:0,_zeroLengthFileCounter:0,constructor:function(){this._self=this,this._inMemTilesIndex=[],this._inMemTilesObject={},this.store=new O.esri.Tiles.TilesStore,this._validate()},extend:function(a){this._fileEntriesLength=a.length,this.emit(this.PROGRESS_EVENT,this.PROGRESS_START),this._parseInMemFiles(a,function(){this._parseConfCdi(function(a){this.initialExtent=this.fullExtent=a,this._parseConfXml(function(a){this.tileInfo=new e(a),this.spatialReference=new d({wkid:this.tileInfo.spatialReference.wkid}),this.loaded=!0,this.onLoad(this),this.emit(this.PROGRESS_EVENT,this.PROGRESS_END)}.bind(this._self))}.bind(this._self))}.bind(this._self))},getTileUrl:function(a,b,d){this.emit(this.PROGRESS_EVENT,this.PROGRESS_START)
 var e=this._self.TILE_PATH+"_alllayers",f=this._getCacheFilePath(e,a,b,d)
 if(this._inMemTilesObject!={}){var g="void:/"+a+"/"+b+"/"+d
diff --git a/dist/offline-tpk-src.js b/dist/offline-tpk-src.js
index e4ffaf98..846d722c 100644
--- a/dist/offline-tpk-src.js
+++ b/dist/offline-tpk-src.js
@@ -1,6 +1,6 @@
-/*! esri-offline-maps - v3.0.6 - 2016-03-30
-*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
-*   Apache License*/
+/*! esri-offline-maps - v3.1.0 - 2016-04-21
+*   Copyright (c) 2016 Environmental Systems Research Institute, Inc.
+*   Apache License*/
 /**
  * Library for reading an ArcGIS Tile Package (.tpk) file and displaying the tiles
  * as a map that can be used both online and offline.
@@ -720,7 +720,7 @@ define([
             }
         });
     }
-);
+);
 /**
  * Creates a namespace for the non-AMD libraries in this directory
  */
@@ -738,7 +738,7 @@ else{
 }
 
 //"use strict";
-
+
 
 /*global indexedDB */
 /**
@@ -1000,7 +1000,7 @@ O.esri.Tiles.TilesStore = function(){
     };
 };
 
-
+
 //https://github.com/gildas-lormeau/zip.js/blob/master/WebContent/zip.js
 /*
  Copyright (c) 2013 Gildas Lormeau. All rights reserved.
@@ -1807,7 +1807,7 @@ O.esri.Tiles.TilesStore = function(){
         useWebWorkers : true
     };
 
-}(O.esri));
+}(O.esri));
 /**
  * This library assists with autoCenter the map upon orientation change
  * IMPORTANT: There are Esri dependencies in this library including
@@ -1941,7 +1941,7 @@ O.esri.TPK.autoCenterMap = function(/* Map */ map,/* int */ delay){
         var centerPt = map.extent.getCenter();
         _setCenterPt(centerPt.x,centerPt.y,map.spatialReference.wkid);
     };
-};
+};
 /*
  Copyright (c) 2013 Gildas Lormeau. All rights reserved.
 
@@ -4120,7 +4120,7 @@ O.esri.TPK.___blobURL = URL.createObjectURL(
 )
 
 O.esri.zip.workerScriptsPath = O.esri.TPK.___blobURL;
-
+
 //https://github.com/abdmob/x2js/blob/master/xml2json.js
 /*
  Copyright 2011-2013 Abdulla Abdurakhmanov
diff --git a/lib/tiles/OfflineTilesAdvanced.js b/lib/tiles/OfflineTilesAdvanced.js
index 74d1fb23..3b3827c1 100644
--- a/lib/tiles/OfflineTilesAdvanced.js
+++ b/lib/tiles/OfflineTilesAdvanced.js
@@ -48,9 +48,6 @@ define([
 
             this._tilesCore = new O.esri.Tiles.TilesCore();
 
-            //For calculating minZoom and maxZoom
-            Array.prototype.sortNumber = function(){return this.sort(function(a,b){return a - b;});};
-
             this._self = this;
             this._lastTileUrl = "";
             this._imageType = "";
diff --git a/package.json b/package.json
index d9163af5..aff2d1ab 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "esri-offline-maps",
-  "version": "3.0.7",
+  "version": "3.1.0",
   "description": "Lightweight set of libraries for working offline with map tiles and editing with ArcGIS feature services",
   "author": "Andy Gup <agup@esri.com> (http://blog.andygup.net)",
   "license": "Apache 2.0",
diff --git a/samples/package.json b/samples/package.json
index d0280574..59da49be 100644
--- a/samples/package.json
+++ b/samples/package.json
@@ -9,7 +9,7 @@
   "appHomePage": "appcache-tiles.html",
   "optimizedApiURL": "../samples/jsolib",
   "arcGISBaseURL": "http://js.arcgis.com/3.14",
-  "version": "3.0.7",
+  "version": "3.1.0",
   "private": true,
   "description": "manifest generator project",
   "repository": {
diff --git a/test/spec/offlineTilesAdvancedSpec.js b/test/spec/offlineTilesAdvancedSpec.js
index 84b37081..be0363cc 100644
--- a/test/spec/offlineTilesAdvancedSpec.js
+++ b/test/spec/offlineTilesAdvancedSpec.js
@@ -1,6 +1,6 @@
 "use strict"
 
-describe("offline enabler custom layer library", function()
+describe("offline tiles advanced custom layer library", function()
 {
     var async = new AsyncSpec(this);