Merge pull request #138 from deba/mahesh

Mahesh
EntityContextGenerator and EntityContext
Merge pull request #139 from deba/komal

Komal
ActionDescriptor implementation...
changes required for ActionDescriptor loading....
changes for query result list size..
isUpdated flag added...used when any of the definition object is 
updated..
Merge pull request #140 from deba/milind

Milind
Merge pull request #141 from deba/nitish

Nitish