Revert "Add gitignore file for rails specific files."

This reverts commit 7618293f1c415e1d7ff938daf99aa7a5cdb77bfc.
Merge branch 'master' of https://github.com/DevYah/coolsoft-13

Conflicts:
	Idearator/.gitignore
Merge branch 'master' of https://github.com/DevYah/coolsoft-13
Merge branch 'master' of https://github.com/DevYah/coolsoft-13
Merge branch 'master' of https://github.com/DevYah/coolsoft-13
Merge branch 'C1_mennaamr_#91_Facebook_login' into C1_mnzaki_#74_twitter_login

Conflicts:
	Idearator/db/schema.rb
Merge branch 'master' into C1_mnzaki_#74_twitter_login
Merge branch 'master' of https://github.com/DevYah/coolsoft-13
Add provider and uid fields to User model, as required by Omniauth.

Issue #74 and #91 need this
Merge branch 'master' of https://github.com/DevYah/coolsoft-13
Remove redundant attr_accessible from User model.
Merge pull request #127 from DevYah/C1_mnzaki_#74_omniauth_migrations

Add provider and uid fields to User model, as required by Omniauth.
Merge branch 'master' of https://github.com/DevYah/coolsoft-13
4 Sketches for S2.2,2.3,2.7 and 2.8 respectively

tried to stay consistent with the scenarios and the other sketches
Revert "Revert "Add gitignore file for rails specific files.""

This reverts commit 49a8981dc753673495524ca8630146d0db15367c.

No. You will not remove the gitignore file.
Update .gitattributes

Make sure image files are treated as binary.
Renormalize line endings for two layout files.
Add omniauth-twitter, twitter app secrets, devise integration.

Issue #74
Add omniauth-twitter, twitter app secrets, devise integration.

Issue #74
Update Gemfile.lock