#2413 -- create 2013 -- so far thru testing seems like just changing the year in variables is sufficient

git-svn-id: http://svn.osgeo.org/postgis/trunk@11855 b70326c6-7e19-0410-871a-916f4a2858ee
#2413 -- switch extension to use 2013 loader script instead

git-svn-id: http://svn.osgeo.org/postgis/trunk@11856 b70326c6-7e19-0410-871a-916f4a2858ee