new install action 01-bringup-chef.install

This starts all the services required to bring up the chef server.
Mostly imported from install-chef-suse.sh.

Moved "make_crowbar_user" to 02_make_crowbar_user to be executed after the chef
server is running.
New install-action: create-admin-role

Creates the Crowbar admin-node role which is needed later on in the install
process.
Merge pull request #15 from rhafer/pull-req-master-53499a2981dc1054bff3af9d37276cf90514f5f7

Merged by devtool for cloudedge