added attachments STI
added icons for attachments, and attachment count badges
Merge branch 'dev' into feature/jr_add_attachments_to_entries

Conflicts:
	app/assets/stylesheets/styles.css
File uploads are working:
	Front end is jQuery FileUploader (still throwing 1 error, but working)
	Back end is carrier wave, storing locally
Merge branch 'feature/jr_add_attachments_to_entries' into dev
removed attachments from seed