Revise includeCount parameter value type

.travis.yml

@@ -12,6 +12,5 @@ node_js:
  - '5'
  - '4'
  - '0.12'
-before_script:
- - npm install -g gulp-cli
-script: gulp
+allowed_failures:
+ node_js: '0.12'

appveyor.yml

@@ -2,26 +2,26 @@
 environment:
  matrix:
  # node.js
+ - nodejs_version: "9.0"
  - nodejs_version: "8.0"
  - nodejs_version: "7.0"
  - nodejs_version: "6.0"
  - nodejs_version: "5.0"
+ - nodejs_version: "4.0"
+ - nodejs_version: "0.12"
 
 # Install scripts. (runs after repo cloning)
 install:
  # Get the latest stable version of Node.js or io.js
  - ps: Install-Product node $env:nodejs_version
  # install modules
  - npm install
- - npm install -g gulp-cli
 
 # Post-install test scripts.
 test_script:
  # Output useful info for debugging.
  - node --version
  - npm --version
- # run tests
- - gulp
 
 # Don't actually build.
 build: off

lib/inflection.js

@@ -22,7 +22,7 @@ var helpers = module.exports;
  * @param {Number} `count`
  * @param {String} `singular` The singular form
  * @param {String} `plural` The plural form
- * @param {String} `includeCount`
+ * @param {Boolean} `includeCount` Defaults to false
  * @return {String}
  * @api public
  */