Merge pull request #8 from DemandCube/developer/tuan08

Developer/tuan08
add sample yarn webapp ws servvice and tracking url
move ipc to its own package
move ipc to its own package
Merge branch 'master' of github.com:DemandCube/NeverwinterDP-Commons into developer/tuan08
Develop rest/webapp framework for netty and yarn application
Move webapp framework to http package. Add netty implementation
refractor yarn framework, implement history server and tracking url for the yarn application