Removed 'withSources'.
Removed last withSources().
Fix lack of thread-safety in RefCountedCache. evict(). Now it evicts only really unused elements. Fixes #480.
Move initialization of SparkSQL context to a field to avoid repeatable initialization and improve speed of the test.
Merge pull request #470 from datastax/wip-469-no-sources

Removed 'withSources'.
Merge pull request #481 from datastax/wip-480

Wip 480: Fix lack of thread safety in RefCountedCache.evict()
Add mailing list and JIRA URLs to README.md.
Merge branch 'b1.0' of github.com:datastax/spark-cassandra-connector into b1.1

Conflicts:
	README.md
Add test for #454
SPARKC-7: Refactor and fix predicate pushdown in SparkSQL code. Fixes #454.