[Ardour-Dev] Updated Swedish translation

[Petter Sundlöf]

In anticipation of 3.0, here's an updated Swedish translation:

http://nebulus.se/~odd/ardour3-transl20110328.tar.bz2

However it's not as perfect as could be given a few issues I can't seem 
to work around:

* Slide/Splice/Lock dropdown menu in the editor
* The Manual item in the Help menu is translated into "Manuellt" (the 
meaning that doesn't mean a help manual)