[Audacity-quality] Remove duplicate align commands

[Steve t. F. <ste...@gm...>]

The patch for bug 654 makes minimal changes to the menu command names
because, as per previous discussions, we are hoping that keyboard
preferences will be fixed so that it is not necessary to include the
sub-menu name as part of each sub-menu item.
http://bugzilla.audacityteam.org/show_bug.cgi?id=654

This patch removes the duplicate align functions.and  resolves the
issue of poor visibility of the access key for "Align Tracks
To&gether" by changing the access key from the "g" to the "T": "Align
Tracks &Together".

Any problems with this patch or can I mark it "patch ready"?

Steve