Remove extraneous require_once calls
CRM-13737 fix d6 code to facilite altered directory structure
CRM-13737 add finder fn for alternate folder structures

Conflicts:
	civicrm.module
D6 Integration - reinstate smary require_once

as it is not a class
Merge pull request #89 from eileenmcnaughton/6.x-4.4

CRM-13737 fix d6 code to facilite altered directory structure