added apt cache update and basic vagrantfile
moved playbook to subdir, provisioning setup in Vagrantfile
don't run as root anymore, use sudo instead

* needed for simple vagrant install
fixes related to vagrant, some new tools

* fixed slow DNS problem (nginx download fails)
* wait longer if supervise/ok is missing
* don't update apt cache if it was updated in the last 30 min
* more memory and cpu because compilation needs some resources...
* forward port 443 to 3000 on host system
* additional ansible args using env var
* install vim and htop
redmine version 2.5.1
temporary fix for redmine_group_owners exception
added "universal" vagrant setup

* the new setup installs ansible on the VM, making this usable even on
* Windows