Added dependencies

Added dependencies afnetworking + formatterkit using cococoapods
Added webservice manager
Added datamodel objects
Added tableview
Lex: added UI for questions and review listings + some object bases
Moved web service base url to inline WebserviceManager
Project cleanup and code organization
Updated ws base url
Comments for tabbar localization
Implemented question data fetching from ws
Fixed invalid propterty names in user object
Fixed review comments filed by Joris; mostly added comments
Added launch images
Removed duplicate navigationBar.translucent set
Preparation for question detail view
Merge pull request #3 from lexnicolaes/master

iOS answers base app