Updated openstack/openstack
Project: openstack/heat  73a9dce9baea12bf980d2451dc6bac7ac64e14db
null
Move some template validation to Template class

This patch moves some template validation code to the Template class'
validate() method which has been introduced in change
https://review.openstack.org/#/c/83758 .

Going forward, this should make it easy to perform specific
validtion in Template sub-classes (HOT, CFN).

Change-Id: Iaf86f48d462231a7aa51adb642ea8920f9f43892