Login screen added
added answers detail view
Merged with master
Merge pull request #28 from fontysppsm/master

Added answers detail view (not yet connected with main table)
Implementation answerDetailViewController
Merge pull request #29 from fontysppsm/master

Implementation answerDetailViewController
Merge pull request #30 from lexnicolaes/master

Added avatar + username for menu
Preparations for single tableview overhaul (using predicate)
More groundwork for predicate filtered table