[Mageia-webteam] Initial hosting requirements for maintainers db

[Kosmas Chatzimichalis]

The initial requirements for installing the maintainers db in the
mageia server are:

1. RVM (Ruby version manager)
2. Rubygems (1.3.7)
3. Rails (3.0.3)
4. MySQL or PostgreSQL (if everything else is using it).
5. Passenger (Apache mod_rails)

Kosmas