HBASE-11912 Catch some bad practices at compile time with error-prone
HBASE-12353 Add hbase-annotation-tests to runtime classpath so can run hbase it tests
HBASE-12316 Document scanner timeout troubleshooting for Thrift clients
HBASE-12353 Turn down logging on some spewing unit tests (Dima Spivak)
HBASE-12352 Add hbase-annotation-tests to runtime classpath so can run hbase it tests; ADDENDUM