Adding Login Function
Changing top nav to fixed & updating registration form
landing page + search bar
Updating registration form and customising
fixing css dual link issue (having two stylesheets appearing on the same page)
adding tag colours into browse and updating landing page text
adding posts view and posts routes
Adding comments
fixing search bar alignment issue
contribute controller update
Merge branch 'add-devise'

Conflicts:
	log/development.log
Updating registration forms