noob-proofing a bit

The community has been renamed from Oldenburg (ffol) to Nordwest (ffnw) to include other cities. Also the git url has changed.

Added Braunschweig to site-repos in the wild

This chapter is no longer needed (duplicate content).
The content is alrady in http://gluon.readthedocs.org/en/latest/user/getting_started.html#getting-started .

This chapter is no longer needed (duplicate content).
The content is alrady in http://gluon.readthedocs.org/en/latest/user/getting_started.html#getting-started .

add information about the environment variables.

the command autoupdate not work, so a fix smal fix necessary

It's much nicer to fill in the release notes piece by piece as v2014.4 is
developed, so let's start with the new modular config mode.