Add "with installer" search option

Will filter out games with no installer. Does it by default.
Add "with installer" search option

Will filter out games with no installer. Does it by default.
Adds checkboxes on admin games list to easily (un)publish
Changed ordering of admin games list
Merge branch 'master' of https://github.com/Xodetaetl/website
Update postgres docs
Clarify bower and grunt docs
Update production requirements
Add sysdeps in Makefile
Limit length of installer slugs
Add autocreate_steamdb_installers command
Add missing slash to filter by platform url
Update installer autocreate for games with no icon
Update about page for github issue tracker
Set game name as title in game details page
Let staff edit all installers
Reworked mission statement
Style touch-up
More style touch-up : footer inner shadow
More touch-up : fixed unordered lists