Commented Feature: Implement : [blocks/create] [1733]

Reference : https://dev.twitter.com/docs/api/1.1/post/blocks/create

Parameters :
- screen_name / user_id
- include_entities
- skip_status
Comments: Associated with changeset 34311: Version 0.9.0.0
- Finished tested User Controller
- Updated testes for the FriendshipQueryController
- Added default parameter values for some of the user controller methods