Add and set up basic models and migrations for Link and Repo
Merge branch 'Harsh' of https://github.com/yashness/pinlinks into shubham

Conflicts:
	db/schema.rb
Add confirmable to User registration
Merge branch 'master' of https://github.com/yashness/pinlinks into Harsh

Conflicts:
	db/schema.rb
import bootstrap
Fix faulty migration for defining relationships between users , repos and links
Add validates methods in links and repo model
Add a statement in application.rb to fix i18n error
make error_messages partial and corresponding helper method for its easy usage
Fix a small bug in user.rb
Create links and repos controller and views. Implement appropiate actions in both configured with proper routing and views
Merge branch 'Harsh' of https://github.com/yashness/pinlinks into shubham

Conflicts:
	config/routes.rb
	db/schema.rb
Solve small bug concerning empty repos for new user
Add flash messages
Authenticate user before taking important action
Solve a bug-big blunder! watching repos of own and other user in list
Solve the double render bug for home page
Change post request to get for visiting links
Allow only the owner to delete his repos
Allow only the owner to delete links