Merge pull request #38 from metacret/master

isRunning should be set false repeatedly
Merge remote-tracking branch 'upstream/master' into thrift-0.7.0
TestLog4jAppenderWithLog4JConfig fixed with resource file moved
SinkManager.shutdown() is @PreDestroy
Kakfa 0.8.1
merge master
Merge branch 'master' into thrift-0.7.0
merge master
Merge branch 'master' into thrift-0.7.0
libthrift 0.7.0
Merge branch 'master' into thrift-0.7.0
- PreDestroy : cancel pingTask
no message
Merge pull request #81 from thinker0/feature/cancelPingTask

- PreDestroy : cancel pingTask
getNumOfPendingMessages
implement getNumOfPendingMessages
unit test fixed
Merge pull request #84 from metacret/ISSUE-82

getNumOfPendingMesasges
#86 finally close
NPE fix