SHARK-111: Automatically sends s3 credentials from master to slaves.
SHARK-112: ClassNotFoundException on shark-shell.
Removed CacheKey class.
Fixed RDDs to compile with Shark 0.7
Updated run script to accommodate amplab verion of hive jars.
Merge pull request #86 from amplab/streaming

Changes to compile Shark with Spark 0.7 (streaming)
Destroy driver properly in sql2rdd
Merge pull request #88 from mbautin/master-sql2rdd-destroy-driver-properly

Destroy driver properly in sql2rdd to prevent leaking resources
Merge remote-tracking branch 'src/master' into tmp
Remove CacheKey class