DRILL-216: Throw exception if someone tries to access a bare _MAP type.
Packaging cleanups and making binary artifact name consistent with source artifact
Reduce the likelihood of phantom schema changes in distributed query plans.
DRILL 211 - index out of bounds error in parquet reader.
Drill 210 - incorrect record count reading from parquet file.
[maven-release-plugin] prepare release drill-1.0.0-m1
[maven-release-plugin] prepare for next development iteration