prepping for rc1 release

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@11652 b70326c6-7e19-0410-871a-916f4a2858ee
call this one rc2 with plan it will never be released and we'll go straight to gold after we clean up the news and docs.

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@11654 b70326c6-7e19-0410-871a-916f4a2858ee
oops booboo

git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@11655 b70326c6-7e19-0410-871a-916f4a2858ee


git-svn-id: http://svn.osgeo.org/postgis/branches/2.1@11663 b70326c6-7e19-0410-871a-916f4a2858ee