Update READMEs
Fix handling of SimpleStatement with values in query build batch (JAVA-393)
Merge branch '2.0' of https://github.com/datastax/java-driver into 2.0
Merge branch '2.0' into 2.1

Conflicts:
	README.rst
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/Batch.java