add test for both hosts and pool params
tests for host params with pools, but without pool params
better descriptons for the hosts param with pool test
fix problems with server configuration
skip a test now because of certain design problems
use ids instead of yaml references, references don't work.
use ids - pass tests
readd old test
refactor all the references out
refactoring to make pool ids work partially
fix one more tests that broke because of the refactoring
fix problem with host params that have configuration options
rename _hosts to _hosts_option in configuration
huge refactoring of servers to hosts
tests should cover interfaces - cover pool.deploys instead of the _get_deploys method
do the same for hosts
pool should also be an ordered list, because that way you can specify what is going to get installed first.
extends tests
huge refactoring, but merging still fails with recursion problems
fixes in inheritance stuff