HBASE-7822 clean up compactionrequest and compactselection - part 1 (Sergey)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1445696 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7823 Add ignores to hbase-prefix-tree

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1445917 13f79535-47bb-0310-9956-ffa450edef68