This new documentation can be built using `make docs`. It should be
built automatically via a hook on github and published on
https://ring.readthedocs.org.

This allows for much better formatting and is more pleasant to browse
for new contributors. It is possible to build the docs using the
Makefile at the root of the repository.

Change-Id: I664d4662b76c525f2a67eac6266bada3e94aa835
Tuleap: #595

Begin merging all helper scripts into one. Support for other distros
is to be added in the future.

Tuleap: #451
Change-Id: I8ab09502a58ce6a6ccf154be2cf51af401759365