Add auto generated files to login and signup view.
Add class links to views.
Add login to tabbar, add initial UI.
Merge branch 'master' of https://github.com/opfo/app into feature/signup-login

* 'master' of https://github.com/opfo/app:
  Add title of favorite view controller.
Add customized tableview and IBAction.
Add login user by display_name property.
Add tabbed view controller as prop and validate login.
Merge branch 'master' of https://github.com/opfo/app into feature/signup-login

* 'master' of https://github.com/opfo/app: (120 commits)
  Fix profile search cells being transparent.
  Change the background via the tab bar controller.
  Change how we hide the search bar at first show.
  Change background color of questions and profile search views.
  Change questions search bar token style to be readwrite.
  Enable getting related tags
  When checking for presence of a related object, check for the id, don't check for the actual model object
  Change which questions we show at start.
  Remove unused code which is causing a major slowdown.
  Add a way to get >/>=/</<= objects to the search term.
  Update AKTabBarController to fixed version.
  Fix an auto layout constraint issue.
  Add a line above questions search field.
  Fix -view(Will|Did)(Disa|A)ppear: must message super.
  Fix table view cell group being duplicated.
  Add a default row height for the questions table view.
  Change how we hide the search bar.
  Change to our fixed version of AKTabBarController.
  Add convenience method for formatting score numbers.
  Fix score number formatter not supporting negative numbers.
  ...

Conflicts:
	Code Stream.xcodeproj/project.pbxproj
Merge branch 'master' of https://github.com/opfo/app into feature/signup-login

* 'master' of https://github.com/opfo/app:
  Fix annoying warning in console.
  Remove some dead code.
  Fix app crashing on launch in release mode.
  Change the formatting a tad.
  Add description method for OPFUser.
  Add description method for OPFTag.
  Add description method for OPFQuestion.
  Add description method for OPFPost.
  Add description method for OPFComment.
  Add description method for OPFAnswer.
Add container view controller callbacks to sub controllers.
Add children to container and implement transition methods.
Add titles to views and fix inconsistent relationships.
Add subviews dependent on login-state.
Add category on NSString for MD5-Hashing.
Change OPFMD5Hash to be string-method, change login by eMail.
Fix profile view loading from storyboard.
Fix input field widths in login form.
Fix setting usermodel on profile view.
Merge branch 'master' of https://github.com/opfo/app into feature/signup-login

* 'master' of https://github.com/opfo/app:
  Remove some duplicate references in the Xcode project.
  Change user profile search bar to our custom class.
  Refactor out top border into search bar base class.

Conflicts:
	Code Stream.xcodeproj/project.pbxproj
Merge branch 'master' of https://github.com/opfo/app into feature/signup-login

* 'master' of https://github.com/opfo/app:
  Disable auto layout for post body cell.
  Fix question table view cells not having a white background.
  Fix container navigation view controller being inited twice.
  Change the question view’s background color to clear.

Conflicts:
	Code Stream/OPFTabbedHomeViewController.m