HBASE-6907 KeyValue equals and compareTo methods should match (Ted Yu)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1436434 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of https://github.com/apache/hbase into clean
Merge branch 'clean' into fw
first tests with hadoop 1 - work in progress