Considered faster according to:
http://stackoverflow.com/questions/712791/json-and-simplejson-module-differences-in-python
http://stackoverflow.com/questions/706101/python-json-decoding-performance



As a side-effect, it might make irker work under Python versions older than 2.6.

Signed-off-by: Eric S. Raymond <esr@thyrsus.com>

With manpage documentation including example script.
Also add the full e-mail to the available metadata (only git for now).

Signed-off-by: Eric S. Raymond <esr@thyrsus.com>

Signed-off-by: Eric S. Raymond <esr@thyrsus.com>

This is required in order to correctly handle pushes of non-default
branches to a bare repo.

...if not, we don't go to the tinyifier and we make the URL field empty.