Merge changes from topic "b166448040-keyguard-message-area"

* changes:
  9/N Clean Up Keyguard Class Structure
  8/N Remove View Injection from KeyguardMessageArea
  7/N controllers for remaining Keyguard Password Views.
  6/N Add Controller for KeyguardPatternView
  5/N Add KeyguardSecurityViewFlipperController.
  4/N Setup Controller fo KeyguardSecurityContainer.