HBASE-12560 [WINDOWS] Append the classpath from Hadoop to HBase classpath in bin/hbase.cmd
HBASE-11992 Backport HBASE-11367 (Pluggable replication endpoint) to 0.98 (Ramkrishna S. Vasudevan)

Incorporates changes from HBASE-11367, HBASE-12136, and HBASE-12386
HBASE-12479 Backport HBASE-11689 (Track meta in transition) (Virag Kothari)
Merge remote-tracking branch 'remotes/origin/0.98' into 0.98