[maven-release-plugin] prepare for next development iteration
Update READMEs
Use interfaces for most main object to faciliate testing/mocking

JAVA-195 #fixes
Merge branch '1.0' of https://github.com/datastax/java-driver into 1.0
Update READMEs
Document that null values are not supported in collections
Undeprecate BoundStatement
Merge branch '1.0' of https://github.com/datastax/java-driver into 1.0
Make statement ctor protected
Clean up imports
make sure to properly shut down metrics registry
Update changelog
OCD
Avoid overlong debug message

JAVA-240 #fixes
Avoid possible NPE in HostConnectionPool

JAVA-231 #fixes
Changelog update
Document that BoundStatement#bind can throw NPE

JAVA-226 #fixes
One more addition to the javadoc
Fix error messages
avoid multiple prepares per host with multiple sessions