update competition view
render stream_component in enroll idea modal dialog
Merge master
create separate js file for navigation bar js js
new file for sign in form alone without facbook and twitter
remove sign up js from users.js
Add dropdown sign in and up
add load_tags method to load tags before filter
new sign up form with tags included
Add nav-login class
Remove best ideas from landing page
Merge branch 'master' into update_competitions

Conflicts:
	Idearator/app/assets/stylesheets/competitions.css.scss
Merge pull request #357 from mnzaki/signin_up_dropdown

Sign in and sign up links toggle drop down forms instead of redirecting
Merge pull request #331 from mnzaki/update_competitions

Update competitions
Merge pull request #358 from mnzaki/New_landing_page

New landing page
Unapproved ideas visible in personal stream
Update idea page css
Disable voting for unapproved or archived ideas
Unappoved ideas not visible except for committee and owner
Update idea submission form