Reorganizing the Debian/Ruby documentation

[Lucas Nussbaum <lucas@lucas-nussbaum.net>]

Hi,

In preparation for the Ruby BOF at Debconf, I've started to reorganize
the Wiki documentation of the team.

The main entry point is
http://wiki.debian.org/Teams/Ruby

All packaging documentation is supposed to be on
http://wiki.debian.org/Teams/Ruby/Packaging
This includes what was previously in the RubyInWheezy page.
(It still needs more work)

There's a few other pages that weren't merged:
http://wiki.debian.org/Teams/Ruby/RubyExtras/OnRubygems
http://wiki.debian.org/Teams/Ruby/RubyExtras/RubyPackageTools
http://wiki.debian.org/Teams/Ruby/RubyExtras/UpstreamDevelopers

I've added redirects where appropriate (I think).

- Lucas