prepare for the release
[maven-release-plugin] prepare release v0.5.0
[maven-release-plugin] prepare for next development iteration
update Spark Compatibility in doc
Update docs with new tachyon jar paths
Adding javadoc for Users.java and MasterWorkerInfo.java
update docs for running mr
reference tachyon-client instead of tachyon
Adding javadoc
Cleanup the Javadocs
lower access level for methods
switched to uri get path to get hadoop path
Grammar fixes

Mostly these are small wording changes and some more detailed
explanations in a few areas.
Merge pull request #285 from manugoyal/upstream-branch-0.5

Grammar fixes
minor documentation fix
prepare 0.5.0 release again
[maven-release-plugin] prepare release v0.5.0
[maven-release-plugin] prepare for next development iteration
revert
Merge branch 'branch-0.5'