Add basic cancan stuff (WARNING: VERY UNSTABLE)

You can literally do nothing, so don't merge this anywhere or try
anything with it.
Cancan works now! Yay!
A prettier way to do something that I came across randomly that has
nothing to do with cancan.
Make some sidebars.

@sammidysam @four04 what should we put in the left sidebar?
Make fix suggested in comments on bd21d83d52c296e3bceb159b38a190d2f44118c5
Space
Make some sidebars.
Space
Show period of class on sidebar
Merge branch 'sidebars' of github.com:kotct/docket into sidebars

My tree is happy now

Conflicts:
	app/views/layouts/application.html.erb
do magical float-y thing

See comments on b9ebdb2650489d14925a77f9ef212c7479eb2da5
Merge branch 'master' into fixes
Move relevant_date method to in private block
DRY: include ApplicationHelper in docket controller
This will allow the function to not be defined twice.
Sort things, fixes #18
Fix meta tag so it actually works on mobile
Merge branch 'master' into sidebars
Merge branch 'cancan'

Conflicts:
	app/controllers/docket_controller.rb
Merge branch 'sidebars'