DRILL-1369: Constrain code compilation cache.
DRILL-1372: Separate category B licenses into their own directory in the binary distribution.

Adding a statement about the category B licensed software in the NOTICE files and adding the appropriate reference to MIT licensed source in the LICENSE file for the source distribution.
Updating projects version to 0.6.0-incubating-SNAPSHOT.
DRILL-1379: MapR profile - use MapR v4.0.1 release
DRILL-1392: Include partition columns in star queries
DRILL-1389: Incorrect results when reading nullable data out of parquet

Fixed numerous issues in the nullable reader for parquet, removed some cruft from previous attempts to fix earlier issues that did not properly address the root causes. The reader overall is simpler and cleaner. Verified against a variety of existing a new files with complete result checks comparing against Steven's parquet reader that uses the higher level interface.

Wrote some new test tooling to allow for comparisons of large result sets.

Re-enabled the fixed binary support that was accidentally removed in some of the last changes before 0.5.

Fixed a bug where we were initializing the column data reader to read the uncompressed size of the column chunk, rather than the on-disk size.
DRILL-634: Cleanup/organize Java imports and trailing whitespaces from Drill code
Disable Lilith SOCKET connection by default.
DRILL-1390: Hive query against an ES data source fails
DRILL-1400: JsonConvertFrom should use the correct work buffer from JsonReader
DRILL-1402: Add check-style rules for trailing space, TABs and blocks without braces
DRILL-1403: HBase predicate pushdown filters are not getting applied
README update.
DRILL-1411 Fragment memory planning
DRILL-1391 : Fix compilation error in run-time generated code for several math functions over decimal types.
DRILL-1383: Support interpreted execution for Drill expression tree.

Fix OOM while running InterpreterBuilder
Patch for DRILL-705

Currently only supports partitioning/ordering, not yet preceding or
after offsets
DRILL-1386: Push directory filters into group scan for filesystem queries.
DRILL-1414: Move profile storage to DFS rather than using PStore
DRILL-98: MongoDB storage plugin

This commit disables MongoDB PStore due to changes to the PStore interface.