Commented Feature: Implement : [lists/update] [1756]

Reference : https://dev.twitter.com/docs/api/1.1/post/lists/update

Parameters :
- list_id
- slug
- name
- mode
- description
- owner_id / owner_screen_name
Comments: Associated with changeset 34644: Version 0.9.0.0
- Implemented UserLists
- Implemented CreateList
- Implemented GetSpecificList
- Implemented UpdateList
- Implemened DestroyList
- Updated TwitterToken namespace
- Moved TwitterToken project into TweetinviCredentials
- Implemented a SavedSearchDTO to differentiate it from the Model

Special thanks to doglin82 for the help provided on Lists :)