Move AIT-GUI version logging clause under AITGUIPlugin class

[Futabay]

It seems that try / except clause below is related to GUI plugin only. It's a good idea to move the clause under AITGUIPlugin class.

AIT-GUI/ait/gui/__init__.py

Lines 264 to 271 in 66dfe59

	try:
	with open(os.path.join(HTMLRoot.Static, 'package.json')) as infile:
	package_data = json.loads(infile.read())
	VERSION = 'AIT GUI v{}'.format(package_data['version'])
	log.info('Running {}'.format(VERSION))
	except:
	VERSION = ''
	log.warn('Unable to determine which AIT GUI Version is running')