d/apache2/patchwork.conf: use /patchwork for the URL

For better integration with other web apps, let's use /patchwork in the URL.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/patches: make wsgi to work with django 1.7

A small modification is needed in the wsgi script to get patchwork working
with django 1.7, which now becomes a dependency.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
d/control: bump standars to 3.9.6

No special changes required.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>