should fix #165
revert reltag sorting to relevance
adds placeholder text to quick search
add more quick searches

comments, notes, and users
Merge branch 'testing'

Conflicts:
	app/views/artists/_quick_search.html.erb
	app/views/pools/_quick_search.html.erb
	app/views/tags/_quick_search.html.erb
	app/views/wiki_pages/_quick_search.html.erb
fix ids in quick searches again