HBASE-8186 Untether javadoc and site build

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1460037 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7878 recoverFileLease does not check return value of recoverLease, addendum



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1460058 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7848 Use ZK-based read/write lock to make flush-type snapshot robust against table enable/disable/alter

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1460074 13f79535-47bb-0310-9956-ffa450edef68