Merge pull request #7 from RKim220/instagram

update session controller name
devise user model by default
devise up and running w mongoid
working oauth with twitter facebook and instagram
Merge pull request #9 from RKim220/devise

Devise
update model with token and secret for access
instagram feeds are on
clean out controller
Merge pull request #10 from RKim220/devise

Devise
nothing to cm
fix log in with oAuth and create account in one swoop
fix merge conflict in PID
Merge pull request #11 from RKim220/devise

fix log in with oAuth and create account in one swoop
update facebook api read feed with temp oAuth token