Options

The Options changes as [discussed on the forum](http://www.cruisersforum.com/forums/f134/ocpn-3-3-options-pages-layout-136785.html).

I still want to make a few tweaks, especially a minor label misalignment on Linux, but won't get to it until this evening.

Apart from those few minor tweaks this is working fine on all platforms – so if you are in a hurry because of tomorrow's beta, you could commit it now.