GitLab

Fix `memopol-code` alias so that the env variable `DJANGO_DEBUG` is
actually exported.

Fix typos, correct grammar and clarify some instructions in user
messages.

`memopol-update-all` was not working due to a typo in its definition.
Fixed.

When no shell is detected, set `RCSHELL` variable to point to
/dev/null.
This avoid weird error messages.

Shell detection used hardcoded paths that made it fail when using
distributions using a different scheme (e.g. debian-based distros).

Improve shell detection by using a glob-based comparison, where we do
not assume any specific path leading to the shell binary.

- add tox for easier reproduction of travis builds
- add idempotence to install_client_deps.sh if CI=1
- mov modules into src/
- update setup.py to install everything as separate modules
- add docs and qa tox jobs
- update documentation

Todo:

- merge django-representatives
- merge django-representatives-votes

- continuous integration with travis,
- continuous deployment with openshift,
- add update_score cron,
- sentry for exception tracking,
- continuous documentation build with rtfd,
- configuration made 12factor-ish,
- make use of new django-representatives version for database
  optimization.