Add images.
Update fullpage initializer for home page.
Remove extra Bootstrap dependency.

Previously, Bootstrap was being imported (despite 'flatly.css' being
imported), because the variables (e.g. '$gray') were needed. These are
now defined explicitly in 'footer.css.scss', so the extra import is no
longer needed.
Change background color to purple.
Import new fonts.
Add two options to colleges.

Adds 'st-hughs-alumni' option, as well as 'oxford-other' option. The
former is self-explanatory. The latter is for departmental staff.
Redirect to tickets page on user edit.
Allow only index page for tickets now.
Change index page for pre-ticket release.
Change color scheme.
Improve 'need password' message on user edit page.
Add Facebook and Twitter logos to footer.
Improve indentation in '_navigation_links.html.erb'.
Add animate.css for animations.
Remove un-needed file.
First draft of home page.

Todo:
  * backgrounds for rest
  * align headings
  * footer?