Merge pull request #67 from deba/pallavi

Pulling all updates
added the toString() removed the private final string constants in
Entity
Merge pull request #68 from deba/milind

Merging updates from Milind Branch
commented the toString impl in Entity
Merge pull request #69 from deba/komal

Komal
the broadcasting message entity pojo and event class for broadcasting
Merge pull request #70 from deba/mahesh

Mahesh