HBASE-9575 Add script to automate much of the rc-making process

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524539 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9364 Get request with multiple columns returns partial results

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524576 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9153: Introduce/update a script to generate jdiff reports

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524585 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9551: HBaseTestingUtility#createPreSplitLoadTestTable double close HBaseAdmin

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524595 13f79535-47bb-0310-9956-ffa450edef68
Add pointer to hbase-downstreamer for testing if mvn artifacts properly published

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524624 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9581: Few tests broken since HBASE-9551

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1524627 13f79535-47bb-0310-9956-ffa450edef68