Merge pull request #6 from michaelbyrd/master

added a sweet seed assignment
Changed css
Merge branch 'master' of github.com:sebarmano/tracker

Conflicts:
	app/views/assignments/index.html.erb
	app/views/assignments/show.html.erb
resolved conflicts
merged seeds
Added styles to some buttons
added README file
fixed bugs, added some seed data
fixed hours until due