Partly revert b95f6720672dfa5e5f423acc48265cd96950c34d to restore playlist folders and synchronization support.
Update app/content/html/eula.html.in

typos
Center the nightingale logo in the faceplate

This fixes #48
Native menus for windows and linux

Fixes #89
I may have broken some mac stuff.
We should really throw out the global skin overrides, and use the native
appearance of the elements by default.
There may still be bugs with Linux styling. E.g. missing indents or too
much padding.
Better menubar for linux

Don't expect this patch to solve all the horrible styling you may see on
linux systems. However I need to figure out patterns before randomly
patching every flaw. The menubar for example looked great on my distro.
Revert "Native menus for windows and linux"

This reverts commit f4b8e2314b8b008cde06220924017f8943546b67.
Revert "Better menubar for linux"

This reverts commit 588429d1f7ec0a0a018cad4500092826f09f7944.