macosx: audio effects: use a more sensible range for the volume normalizer slider
Revert "macosx: enable native fullscreen by default on mavericks"

They are several complaints for nonworking functionality with this
mode, because not every option combination is supported yet.

Additionally, the initial reason for this commit, namely grey
bars in fullscreen, is fixed by a workaround for 2.2.

This reverts commit 72b60566a25ca24cb4cf54d394a8275bee5cc9e8.

Conflicts:
	modules/gui/macosx/macosx.m
macosx: use new metadata-network-access variable