Updated table filter styles
Update toggle styles
Filter reports by time
Report source filter
Sources list index
Add aggie-toggle directive
Cache Source nickname in Report object.
Fix error handling in Bot.
Add other source images
Sort sources by nickname.
Remove last report date from source list
Add nickname to source filter
Merge branch '1181_list_sources' into develop

Conflicts:
	public/angular/js/controllers/report.js
	public/angular/sass/app.scss
	public/angular/templates/reports/index.html
Merge branch 'develop' of github.com:TID-Lab/aggie into develop