Version 0.75

fix for internal C methods conflicting with digest md5 (0.75.2)
fix reduce issue when incrementally building lists of reduce.values (0.75.2)
provide serialization for simple environments
update so that output to non-standard file URIs like s3 work in rhwatch()
update build script
update to be compatible with R 3.2
update to handle nulls in input text files using modified utf-8
update readTextFile to be more flexible with file URI
updated RHWrite and RHSequenceFileIterator to be more flexible with file URI
as a consequence file reading/writing functions will work with file:// and s3:// URIs
updated the R functions (e.g. rhcp/rhls/rhmkdir etc) to not depend on rhoptions()$clz$filesystem which has been removed)
updated the test functions to work with this new method
library.dynam nows makes internal C functions public and we made collect/counter/status extern "C" so other C modules can use them
update all deprecated hadoop api calls
update PersonalServer ls to handle non-default Hadoop URIs differently
add _meta to ignored RHIPE files
fix build.xml to be more linux-friendly
rherrors can read output of rhwatch(..., read=FALSE) to read the errors folder using the new dump frames options
rhJobInfo, rhstatus and rhwatch correctly get the jobid (uses the Java MapReduce API)
rhstatus (inside FileUtils) to return jobid (no need to use regex parsing)
version 0.75 will be Hadoop 2 compatible only
start NEWS.md file (see git log for all previous history)

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