Easy setup for ubuntu

For unstable version 2.0

1. login as user, install git & generate ssh key, clone git://github.com/gitlabhq/gitlabhq_install.git
2. Install packages - ./ubuntu_packages.sh
3. Install ruby - ./ubuntu_ruby.sh
4. Install gitolite (change repo umask 0007 when edit config) - ./ubuntu_gitolite.sh
5. logout & login again
6. Clone & setup gitlab - ./ubuntu_gitlab.sh
7. Start server - cd gitlabhq & bundle exec rails s -e production