Move cube code into lens
Merge branch 'develop' of https://github.com/InMobi/grill into cube-code

Conflicts:
	lens-cli/src/test/resources/local-storage.xml
	lens-examples/src/main/resources/local-cluster-storage.xml
	lens-examples/src/main/resources/local-storage.xml
	lens-storage-db/src/test/java/org/apache/lens/storage/db/TestDBStorage.java
Add cube package files
Merge branch 'develop' of https://github.com/InMobi/grill into cube-code
Fix test failures
Formatting and Fixing test failures
Fix test failures
Merge branch 'develop' of https://github.com/InMobi/grill into cube-code
Update license
Config rename from cube.query to lens.cube.query
Merge pull request #157 from InMobi/cube-code

Add cube code in lens-cube package