Update MainMenu.xib

Makes volume changes much smoother.
Merge pull request #2 from cgommel/patch-1

Update MainMenu.xib
Merge pull request #1 from cgommel/master

Merger cgommel pull request.
iRate bumped to 1.9.1
bumped version number + some housekeeping on main UI.
opt-out support for piwik (and settings window).
Color status menu (as per branding guidelines of RP in itself).
Fixes a bug in PSD error processing (triggered by a server problem) and piwik debug.
Fixes RP login errors.
Restored b&w menu icon (optionally selectable from settings window).
Avoid notification when not available (under 10.7).
Some cosmetical changes.
1.0.3 (46) as sent to the App Store.
small changes
re-forked from ilTofa