Implement string hash code in C.
Add function cogroup().
Fix the review comments.
Refine code and add description.
Use extendible accumulators aggregate the cogroup values.
Merge remote-tracking branch 'upstream/master' into hlin09
Minor fix.
Adding the script to install software on the Cloudera Quick Start VM.
Add keyBy() to the RDD class.
Merge pull request #117 from sun-rui/keyBy

Add keyBy() to the RDD class.
Merge pull request #116 from dputler/master

Adding the script to install software on the Cloudera Quick Start VM to go along with the wiki entry.
fix reviews
Merge pull request #114 from hlin09/hlin09

Add function cogroup().
Fix build on Windows.
Merge pull request #113 from sun-rui/stringHashCodeInC

Implement string hash code in C.
[SPARKR-146] Support read/save object files in SparkR.
Add @seealso in comments and extract some common code into a function.
Merge pull request #120 from sun-rui/objectFile

[SPARKR-146] Support read/save object files in SparkR.
Merge remote-tracking branch 'SparkR_upstream/master' into saveAsTextFile