Slightly refactored TDIM parsing and added a special case that should fix https://github.com/spacetelescope/PyFITS/issues/3.  I'm thinking, however, that TDIM handling needs to be further simplified by intrinsically including TDIM in the record format

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2087 ed100bfc-0583-0410-97f2-c26b58777a21
Fixed a related issue where, according to a close reading of the FITS standard, the TFORMn and TDIMn keywords don't have to match up exactly, so long as the sum of the TDIMn dimensions is *less than or equal to* the repeat count in TFORMn

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2088 ed100bfc-0583-0410-97f2-c26b58777a21
Add changelog entry for these fixes

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2089 ed100bfc-0583-0410-97f2-c26b58777a21