locale: remove country qualifier from german strings files

This way the German strings will be used for any locale beginning
with "de" and not just "de_DE".

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@878 d9718cc8-9f43-0410-858b-315f434eb58c
locale: remove country qualifier from Swedish strings files

This way the Swedish strings will be used for any locale beginning
with "sv" and not just "sv_SE".

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@879 d9718cc8-9f43-0410-858b-315f434eb58c