Active item improvements
- Items now glow if ProtocolLib is available
- Fixed an NPE or two
- /sms menu and /sms break commands now work with active items
Only call into ItemGlow if ProtocolLib is available.
Avoid those nasty NoClassDefFound exceptions
Map view now shows a "denied" image if player can't use it.
Include denied.png in the JAR
Active item improvements.
Map views now work when placed in item frames.
remove some debug statements
Added CommandTrigger abstract class.
SMSView and ActiveItem both inherit it.  Now we can do submenus with
active items too.