Updates to the Swedish translation (2)

I forgot to include the list in my reply to Linus, but here comes
an updated translation with fix for some spelling and change of
"Långkalsonger" to "Longjohn" which seems like the accepted wording
used for that kind of wetsuit.

Dirk, I hope I got it right this time (wrapping/utf-8)

Signed-off-by: Fredrik Steen <fredrik@ppo2.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>