Creates a new group

		>>> clc.v2.Datacenter(location="WA1").RootGroup().Create("Test3","Description3")
		<clc.APIv2.group.Group object at 0x10cc76c90>
		>>> print _
		Test5

def Create(self,name,description=None):
		"""Creates a new group

		>>> clc.v2.Datacenter(location="WA1").RootGroup().Create("Test3","Description3")
		<clc.APIv2.group.Group object at 0x10cc76c90>
		>>> print _
		Test5

		"""

		if not description:  description = name

		r = clc.v2.API.Call(
			'POST',
			'groups/%s' % (self.alias),
			{'name': name, 'description': description, 'parentGroupId': self.id},
			session=self.session)
		return(Group(id=r['id'],alias=self.alias,group_obj=r,session=self.session))