Update RedHat postgis script path
Update postgis.sql path
Override postgis package name
Update postgis version from 1.5 to 2.1
Update postgis script path for 2.1
Merge remote-tracking branch 'david/master'

* david/master:
  Update postgis script path for 2.1
  Update postgis version from 1.5 to 2.1
  Override postgis package name
  Update postgis.sql path
  Update RedHat postgis script path

Conflicts:
	manifests/init.pp