Improve network graph

Refer to virtual machine from the installation document.

Corrected some typos in gitlab.yml.example comments

Development doc in repo

Do not send issue status mail twice if author = assignee

Add namespace_id to project creation via API

Cleaned up and enhanced readme.

Finishing touches.

Make the layout more consistent.

This allows you to set the namespace ID for projects via the the API. By default it is created for the current user. You can assign it to the global namespace by passing `GLN` which translates to 'Global Namespace'.

Merge branch 'team-and-group-descriptions' of https://github.com/Undev/gitlabhq into Undev-team-and-group-descriptions

Conflicts:
	db/schema.rb