refactor segues for settings controller

- also refactor controller dismissal after save (only needed one
  dismiss)
refactor menu button in nav controller for feed view

- remove from storyboard and add programmaticaly
- removes swrevealConfigs method
remove unused (and empty) method, associateDefaultUserWithAudioClips
change settings background to gray
remove a commented out string that's not being used
first part of menu work
Merge pull request #40 from maml/profile

Profile