correct mismatched name and title attrs from text fields when creating audioClip
add NSDate+TimeAgo to project
set audioClip's createdAt property before saving to Core Data
change audioClip createdAt from Date to String

- using NSDate+TimeAgo on it before storing
feed displays human readable timestamps
login Dfault user from Parse when view loads

- Dfault was manually setup on Parse
remove a commented out method that's no longer needed
associate current user with audio clip before saving it

- this is hacky and will be removed, more of a proof of concept
add User Entity

- has one attribute: username
- set up one-to-many relationship for User to AudioClips
- set up many-to-one relationship for AudioClip to User
remove name attribute from AudioClip
refactor to load data form Parse everytime, no Core Data storage
Merge pull request #29 from maml/associate-user-with-audioClip

Associate user with audio clip