La til valg av look-and-feel under instillinger
Lagrer look-and-feel navn ved valg og laster riktig look-and-feel ved oppstart
Merge branch 'master' into look-and-feel
Merge branch 'look-and-feel' of https://github.com/sverrehu/basus
Made theme stuff compile on Java 6.
Avoid NPE when there is no theme in the preferences file.
Changelog.
Avoid crash by removing Mac theme.