this should default to false now

git-svn-id: http://svn6.assembla.com/svn/pyfits/branches/3.0-stable@2146 ed100bfc-0583-0410-97f2-c26b58777a21
Preparing release 3.0.11

git-svn-id: http://svn6.assembla.com/svn/pyfits/branches/3.0-stable@2147 ed100bfc-0583-0410-97f2-c26b58777a21
Back to development: 3.0.12

git-svn-id: http://svn6.assembla.com/svn/pyfits/branches/3.0-stable@2149 ed100bfc-0583-0410-97f2-c26b58777a21