TriggerMenuMT: python3 fixes

• cmp
• no destructuring for lambda arguments
• xrange -> range
• Fix relative imports.
• generators -> list
• iteritems
• fix use of filter on strings
• can't use -1 for level in import
• duplicate enum value
• except statment syntax.
• func_name
• izip
• integer literals starting with 0
• exec can't set local variables
• sorting
• integer vs float division