Dont assign the same port to more than one container in a project

[mattalexanderhill]

e.g. here: http://jenkins.edtd.net/job/EDITED%20Github/job/Wardrobe/job/PR-703/5/console

[ryan109]

Caused by this line

kubetools/kubetools/dev/backends/docker_compose/config.py

Line 140 in f842ab6

port_base = int(md5(hash_string.encode('utf-8')).hexdigest(), 16) % 10000