Added changelog entries related to #159 and #160 (removed the somewhat superflous 'New Features' section)
Added changelog entries related to #159 and #160 (removed the somewhat superflous 'New Features' section)

git-svn-id: 5305e2c1a78737cf7dd5f8f44e9bbbd00348fde7@2261 ed100bfc-0583-0410-97f2-c26b58777a21

embray/PyFITS,spacetelescope/PyFITS,spacetelescope/PyFITS,embray/PyFITS,embray/PyFITS,embray/PyFITS