New restlet feaures as per odata V3 specifications.

Added new restlet feaures as per odata V3 specifications.-
1. Batch CRUD Support (http://www.odata.org/documentation/odata-version-3-0/batch-processing)
2. MLE/Streaming Functionality (managing media link entities)
3. Better support for complex properties
4. Support for Actions & Functions (http://www.odata.org/documentation/odata-version-3-0/atom-format#functions)

Also enhanced and fixed -
1. Support HTTP_NEGOTIATE method for form based authentication.
2. Improved command line parsing through Apache commons cli.
3. Improved feed parsing using STAX based model.
4. User friendly parameters for calling functions.
5. primitive -> wrapper class changes to fix null value being sent for empty fields in create/update