misc fixes:

spell:
 - removed weired break from tooltips
 - fixed time units being omitted by intval and subsequent cast to int

achievement:
 - casting id to int to avoid string-comparison in mysql (sped up load a lot)

localization:
 - fixed malformed file

infobox:
 - show video-options only when logged in

filter:
 - allow underscores in search (icon search)

search:
 - really fixed prepended quality for items
implemented Pets
lisview, searcheable, setup
detail page missing

minor:
- show icon for achievements in open search
- show high-quality items first in open search