Open sidebar with navbar button
Upgrade to Bootstrap 3.2.0
Fix layout issues caused by the sidebar
Add navbar contents to sidebar

Only visible on bootstrap's "xs" though
Add a hidden sidebar to "plain.html"

This way, we can see open the hidden sidebar to get to siggame
navigation options
Set up competition app to use the fancy sidebar
Keep the sidebar hidden for "plain" template
Merge branch 'fix-navbar' into develop