#13 Implement Task Service to Push New Tasks Using Form Encoded Format - code complete
Cimpiler warning fix for unused vars
Pulled ISSUE-#13 from Master branch

Merged latest files from https://github.com/mambu-gmbh/Mambu-APIs-Java
ISSUE-#13
Pulled the latest files from the master Mambu branch

Resynchronized with the main Mambu branch
(https://github.com/mambu-gmbh/Mambu-APIs-Java)  as of ISSUE-#13 merge

git pull https://github.com/mambu-gmbh/Mambu-APIs-Java ISSUE-#13
Updated Centers and Branch APIs to retrun Lists (instead of an array)

Updated Centers and Branch APIs to retrun Lists (instead of an array)

Other changes include:
1. RequestExecutorImpl:  GET methods do not need ContentType
2.  Added MambuApiResponseMessage : a helper to process exception
messages's content
3.  Added APIExceptionData (in util).  Provides helper method to access
API response error codes by the responseStatus.  Documents API's
responseStatus constants.
4. MambiApiException: added new method to create Mambu exception using
MambuApiResponseMessage  object.
Merge pull request #15 from mdanilkis/master

Updated Centers and Branch APIs to retrun Lists (instead of an array), removed content type from HTTP GET methods, improved response message and exception handling