Moving Mock classes to a more convenient/accessible location: inside lens-server-api
Query Priority implemented.
    * Change in DriverSelector's api to facilitate explain on all drivers is called beforehand.
    * Change in QueryContext,PreparedQueryContext and addition of DriverSelectorQueryContext, AbstractQueryContext and ExplainQueryContext in order with the last point
    * Priority Decider API and implementation for Hive Driver
    * Hive Driver modifications to use Priority Decider API. Only called in async execute and surrounded with a try block.
    * Accompanying test cases
renaming some config variables and adding default values in conf xml
Merge pull request #169 from zupta/feature/GRILL-653

Adding api to get latest partition date for cube
Fix Hive client conf in ColumnarSQLRewriter
Set session class loader for query conf and rewriter's query conf
Merge pull request #176 from InMobi/db-issue

Fix Hive client conf in ColumnarSQLRewriter
Fix jdbc driver tests
Merge pull request #177 from InMobi/classloader

Set session class loader for query conf and rewriter's query conf
Move to released version of hive
Update config doc
Set next release number to 1.2.0-SNAPSHOT
Added javadoc and apt files.
Merge pull request #162 from prongs/job_priority

set mapred job priority by hive driver
acquiring session before getting latest date