Logscales temporary commit.
Current logscales fix.
Logscales, merged.
Small fixes. Compiling, but stereo linking does still not work (see mailing list).
knob without def ctors.
Final patch for logscales and knob with def ctors.
Merge pull request #586 from JohannesLorenz/def_ctor_widgets

Def ctor for knob + logscale patch