Support dropping tables + make sure upsert has the right storage levels that reflect the cached table storage levels
More tests + small coding style fixes
Fix test, was not creating a cached table correctly
Code Review updates
Fixed the compilation error because of Spark's unpersist API change.
Bug Fix: getTableName is case sensitive whereas cached RDD key is not. Need to handle this
Spacing cleanup
Merge pull request #104 from harsha2010/droptbl

Support dropping cache tables
Bumped hive and hbase
Merge branch 'master' of https://github.com/amplab/shark into AMPLab_merge

Conflicts:
	src/main/scala/shark/execution/MapJoinOperator.scala