fix memcached local tcp address handling
fix memcached version parsing
fix typo
fix integration test MapReduceIT

1. Add byte array serde in RowWritable for Writable interface
2. Add ByteArrayAdapter for gson to serialize and deserialize byte array
3. Fix iterator in MapReduceIT.CountReduce
4. Fix index off-by-one issue in testDumpTableToHDFS
Merge pull request #194 from yaoshengzhe/fix_MapReduceIT

fix integration test MapReduceIT
Don't internally drop messages in the streamlogger.

The writers have individual backoff, and internal drops can result in
not-insignificant losses during query storms. These are lost simply due
to noise in the Go scheduler, not due to actual backlog.
Merge pull request #196 from plobsing/no-internal-drop

Don't internally drop messages in the streamlogger.
Remove umgmt library. It is unused.
Merge pull request #198 from plobsing/rm-umgmt

Remove umgmt library. It is unused.
Merge pull request #186 from ngaut/master

fix memcached local tcp address handling