Quick fix to a missing feature I noticed in FITS_rec.from_columns; it was supposed to be there.
use_modindex was deprecated in Sphinx 1.0; use latex_domain_indices instead.
Much miscellaneous documentation cleanup.  Tried to clarify and clean up some language.  Remove other bits that are no longer accurate, fix broken examples, and improve links to the API docs.  I'm only about half-way through this particular review of the docs; there's still much to be done.
Added more details about the print header issue, and added explanation of the pyfits.STRIP_HEADER_WHITESPACE option
A new table example motivated by a recent Stack Overflow question: http://stackoverflow.com/questions/21046500/adding-a-new-column-to-a-fits-file-via-python
Miscellaneous documentation cleanup until my eyes bleed
Quick fix to a missing feature I noticed in FITS_rec.from_columns; it was supposed to be there.

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2518 ed100bfc-0583-0410-97f2-c26b58777a21
Merge branch 'doc-fixes'

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2522 ed100bfc-0583-0410-97f2-c26b58777a21
Squashed commit of the following:

commit 8eed02f195262edb1ecf609942adacad57fb1576
Author: Erik M. Bray <embray@stsci.edu>
Date:   Thu Jan 30 15:49:56 2014 -0500

    A few more release procedure updates

commit 928ae0b7938eb83631fcb39ef447c63dad5be81f
Author: Erik M. Bray <embray@stsci.edu>
Date:   Thu Jan 30 14:30:36 2014 -0500

    Use a custom docutils writer to handle the tt -> code translation, rather than hacky/buggy regexps.  Also use this to handle the header element rewriting.  Could do even more with this, but this is fine for now.

commit f6b9c01b5d1436d95256f063669377734e583bd5
Author: Erik M. Bray <embray@stsci.edu>
Date:   Thu Jan 30 13:51:42 2014 -0500

    Fix slight typo in display of masked URL

commit 361e003f205da52bcc87e596220ee5086dfa4d0c
Author: Erik M. Bray <embray@stsci.edu>
Date:   Thu Jan 30 13:50:06 2014 -0500

    Allow the version parsing to accept an optional 'v' prefix

commit 46286bda1bf90ca621a82cc53f92b9c607729667
Author: Erik M. Bray <embray@stsci.edu>
Date:   Tue Jan 28 11:30:14 2014 -0500

    Tell readers of the release procedure to ignore the 'STScI package index'

git-svn-id: http://svn6.assembla.com/svn/pyfits/trunk@2525 ed100bfc-0583-0410-97f2-c26b58777a21