Translated Discourse to Danish.

Squashed commit of the following:

commit db81f4a15e5df5ceb64499aba077acd2f8aed192
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Fri Mar 22 23:10:25 2013 +0100

    All the user-facing server strings.

commit c7fdf0d4351664cd2a731556b99ecf7f05a09cde
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Fri Mar 22 22:43:53 2013 +0100

    Like -> Synes godt om.

commit 0f6ba13d65e31246a0a0a9a31707928a14d7220c
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Fri Mar 22 21:27:51 2013 +0100

    Lots of server strings.

commit d66af8246fb6bc9ccff51f97931f1375b07f2d85
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Fri Mar 22 19:48:53 2013 +0100

    Translated user facing strings (almost).

commit a84fcf6ff70d7c304c86263d7917207e505e77b1
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Thu Mar 21 22:15:20 2013 +0100

    Even more client strings.

commit ccfc0f7189fb979973b642bee9ec1440f7d39970
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Mon Mar 18 22:43:08 2013 +0100

    More client strings.

commit c3e21cab82d95ad5abe92e95ad99acf401cbe9ec
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Mon Mar 18 22:12:44 2013 +0100

    Translated a bunch of client strings.

commit 65aad7129b3d9c7df62213522b37e3a413df35de
Author: Mikkel Hoegh <mikkel@hoegh.org>
Date:   Mon Mar 18 22:09:28 2013 +0100

    Started work on Danish translation.
cs translation update
Better error messages when hitting max mentions/images/links
Don't count @mentions as links in a post
If assets haven't been precompiled, fail to start server in production mode with a message
Italian Translation!
Don't email about posts if the user deleted it.
Merge pull request #565 from alpacaaa/it_locale

Italian Translation!
add icon-quote glyph to quote reply pop-up button
Merge pull request #564 from kubabrecka/cs_update19

cs translation update
Merge pull request #493 from mikl/danish-translation

Danish translation.
Stub for actually enabling the Danish translation.
Oops, missed a spot.
Merge pull request #566 from mikl/danish-translation-enabling-stub

Stub for actually enabling the Danish translation.
keeping French l10n up to date
Add twitter, facebook, and google plus links to share dialog
bit more spacing for quote reply glyph
mini profiler fix for multisite
getAjax helper ... saves a lot of typing, we can extend later
refactoring of topic view tracking