Fixed CentOffset, edit checks

Fixed #81
+If you edit arrangement its type won't reset to arrXml.
Added Default song template, with spaces
Recover RS2012 generation support.

Allowed to produce RS2012 cdlc, but not tested ingame may be broken.
Hotfix for DLC Converter

*Fixed bug with tunings,
*Fixed bug with ChordID (created new bug?)
*Fixed Vocals
*Fixed Showlights
Fix build, state
Added recent DLC appids
Enable automatic tone setup again.
Template option to disable tone overrides and load from chart.
Rebase and make overrides work in packer and autoload in GUI.
Connect autoload option to GUI control.