UT for appnode and change return value of process() in appnode.java from void to boolean
Merge pull request #21 from cltlfcjin/master

UT for appnode and change return value of process() in appnode.java from void to boolean
1.remove collector.conf 2.use composition instead of inheritance in LogReader 3.initialize port var from config.preperties
Merge pull request #22 from cltlfcjin/master

1.remove collector.conf 2.use composition instead of inheritance in LogReader 3.initialize port var from config.preperties
1.bugfix at HDFSRecovery.java, 2.rm BlackholeException.java, 3.use ParamsKey.java instead of AppConfigurationConstants.java
optimize retry-delete and retry-rename
Merge pull request #23 from cltlfcjin/master

1.bugfix at HDFSRecovery.java, 2.rm BlackholeException.java, 3.use ParamsKey.java instead of AppConfigurationConstants.java
Merge pull request #2 from dianping/master

sync