* lang/python/docs/gpgme-python-howto.org: more tweaks and edits,
along with another build of output formats.
* doc/gpgme-python-howto.texi: updated texinfo version for parent docs.
* lang/python/docs/gpgme-python-howto.org: Identified and fixed the
headings which kept generating lines with trailing whitespace when
exporting to Texinfo format and adjusted them to prevent that.
* lang/python/docs/gpgme-python-howto.org: Renamed file to better fit
the rest of the project's docs.
* Added a section on the very unofficial drafts I periodically post
links to since they're often the easiest way to get a web version in
front of someone in a hurry.
