GUI improvements, ( Fixed #171 )

Arrangement Form small fixes:
*Fixed new Tunings creation
*Added ability to edit tuning as new.(skips Tuning update for other
arrangements)
*Tone slot will use last tone now
*Added validation to prevent arrangement duplicates.

Creator fixes:
*Auto load tuning for each arrangement from saved template.

Showlighths:
*No Fog changes now (static)
*Interval between notes increased to 2 seconds