add some missing new features to NEWS items

git-svn-id: http://svn.osgeo.org/postgis/trunk@12829 b70326c6-7e19-0410-871a-916f4a2858ee
oops duplicated entry in last commit.  add another.

git-svn-id: http://svn.osgeo.org/postgis/trunk@12830 b70326c6-7e19-0410-871a-916f4a2858ee