comboparse: fix bug with bool cmd args always True

comboparse.py

@@ -15,6 +15,8 @@ class ComboParser(object):
 		self.loaded = False
 
 	def add_item(self, section, name, type, default, desc, required):
+		def str2bool(val):
+			return val in ['True', 'true', '1', 'yes']
 		self.items.append({
 			'section':section,
 			'name':name,
@@ -25,7 +27,7 @@ class ComboParser(object):
 		self.aparser.add_argument(
 			'--%s.%s'%(section, name),
 			help='%s, default: (%s)'%(desc, str(default)),
-			type=type,
+			type=type if type is not bool else str2bool,
 			default=None,
 			required=False
 		)