Omniauth -reddit & -twitter
changes to allow omniauthable users
devise initializes for Twitter and Reddit
Users => uid/name/provider
controller handles omniauth bounces
Merge branch 'omniauth'

Twitter functionality for logins was created.  No buttons were added in our
modals for sign in and up yet.  Also, the Reddit option does not work, might
be impossible.  No documentation found yet.