Merge pull request #3 from LuckyLcm/master

updated reader and added two testcases
Merge pull request #4 from LuckyLcm/master

modified writer and filer classes
refactored filter and handler
refactored filters and dispatcher
Merge pull request #5 from LuckyLcm/master

lcm submit client.java and handler.java
removed icm's test
implemented nioresponseimpl
added jackson dependency
Merge pull request #5 from ChristianChen/master

The latest code