Add get_connected_host_and_port to lock_service and output log when connected to ZooKeeper
Changed log output position
Replace state check to CONNECTED from not CONNECTING
Remove unnecessary ZK API call
Merge pull request #580 from rimms/get_connected_zk

Get connected host and port of ZooKeeper
remove unused variable
add explicit cast for sample_weight
add explicit cast for global_weight
add explicit cast for num_features
add explicit conversion from pointer to bool
use fail instead of operator bool
Merge pull request #597 from jubatus/fix-compiler-warnings

Fix compiler warnings
remove unnecessary insertinclude.py
Merge pull request #598 from jubatus/remove-insertinclude

remove unnecessary insertinclude.py
remove old client directory (fix #576)
Merge pull request #601 from jubatus/remove-old-clients

Remove old client directories