Update Gemfile.lock and schema.rb
Add .rvmrc & ignore binstubs rule to .gitignore
Add Procfile & FS OmniAuth strategy to Gemfile
Add username field to users table
Use OmniAuth for login and API session auth
Update schema.rb
Add required lead source to OmniAuth create method
Merge remote-tracking branch 'upstream/master' into oauth

Conflicts:
	Gemfile
	Gemfile.lock
WIP - handle API session timeout
Merging Oauth changes