#2684, upgrade extensions at the patch level


git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@12371 b70326c6-7e19-0410-871a-916f4a2858ee
Extension "next" is patch-level away (#2684)

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@12372 b70326c6-7e19-0410-871a-916f4a2858ee
#2687, pass tests when raster/vector are co-loaded


git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@12373 b70326c6-7e19-0410-871a-916f4a2858ee