! Bad aspect ratio in Wilderless avatars. (extra.css)
* Went for a better styling of the board list. It's shorter code, gets us rid of eight !important hacks, looks better in all situations, and I used the opportunity to move the board icon to a variable, so that you can change it without having to update sizes and margins at the same time. (Boards.template.php, common.css, sections.css)
* Moved get_preferred_language to a we:: method, as it's only used there anyway... (Class-System.php, Subs.php)

* Browser-preferred language map is no longer built manually, but rather from the list of installed packs. Much, much better... (Class-System.php)

@ This should also fix a few language bugs that were reported before (needs more testing). Thanks to CerealGuy for prompting me to do this rewrite!
* Minor tweaks to make Warm, Wireless and Wilderless more tolerable. (*/extra.css)