RPM Support

On testing https://github.com/PulpQE/Pulp-2-Tests/issues/94
`check that each collection name is unique beneath the update element i.e the name has a <module_name><arbitrary increasing number> suffix `

Steps followed:

Create a repo with the modules rpm feed url (https://repos.fedorapeople.org/pulp/pulp/fixtures/rpm-with-modules)
Sync and publish the repo
Go to the publishes repo with /pulp/repos/', distributor['config']['relative_url']
I used the get_repodata fromutils `Pulp-2-Tests/pulp_2_tests/tests/rpm/api_v2/utils.py`
The xml of the published repo, contained the repo_id in the short field rather than `_<module_name>_<arbitrary increasing number>`

This is tested in

NAME=Fedora
VERSION="28 (Server Edition)"
ID=fedora
VERSION_ID=28
PLATFORM_ID="platform:f28"
PRETTY_NAME="Fedora 28 (Server Edition)"
ANSI_COLOR="0;34"
CPE_NAME="cpe:/o:fedoraproject:fedora:28"
HOME_URL="https://fedoraproject.org/"
SUPPORT_URL="https://fedoraproject.org/wiki/Communicating_and_getting_help"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=28
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=28
PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy"
VARIANT="Server Edition"
VARIANT_ID=server

The pulp version is

pulp-admin-client-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
pulp-deb-admin-extensions-1.8.0-0.1.alpha.201809170522git92d79cf.fc28.noarch
pulp-deb-plugins-1.8.0-0.1.alpha.201809170522git92d79cf.fc28.noarch
pulp-docker-admin-extensions-3.3.0-0.1.alpha.201809170501git0c5d136.fc28.noarch
pulp-docker-plugins-3.3.0-0.1.alpha.201809170501git0c5d136.fc28.noarch
pulp-ostree-admin-extensions-1.4.0-0.1.alpha.201809170503git2c2d534.fc28.noarch
pulp-ostree-plugins-1.4.0-0.1.alpha.201809170503git2c2d534.fc28.noarch
pulp-puppet-admin-extensions-2.18.0-0.1.alpha.201809170505git44a02f8.fc28.noarch
pulp-puppet-plugins-2.18.0-0.1.alpha.201809170505git44a02f8.fc28.noarch
pulp-puppet-tools-2.18.0-0.1.alpha.201809170505git44a02f8.fc28.noarch
pulp-python-admin-extensions-2.1.0-0.1.alpha.201809170459git5e2aa35.fc28.noarch
pulp-python-plugins-2.1.0-0.1.alpha.201809170459git5e2aa35.fc28.noarch
pulp-rpm-admin-extensions-2.18.0-0.1.alpha.201809170509gitdd4651f.fc28.noarch
pulp-rpm-plugins-2.18.0-0.1.alpha.201809170509gitdd4651f.fc28.noarch
pulp-selinux-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
pulp-server-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
python-pulp-bindings-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
python-pulp-client-lib-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
python-pulp-common-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
python-pulp-deb-common-1.8.0-0.1.alpha.201809170522git92d79cf.fc28.noarch
python-pulp-docker-common-3.3.0-0.1.alpha.201809170501git0c5d136.fc28.noarch
python-pulp-oid_validation-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
python-pulp-ostree-common-1.4.0-0.1.alpha.201809170503git2c2d534.fc28.noarch
python-pulp-puppet-common-2.18.0-0.1.alpha.201809170505git44a02f8.fc28.noarch
python-pulp-python-common-2.1.0-0.1.alpha.201809170459git5e2aa35.fc28.noarch
python-pulp-repoauth-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch
python-pulp-rpm-common-2.18.0-0.1.alpha.201809170509gitdd4651f.fc28.noarch
python-pulp-streamer-2.18.0-0.1.alpha.201809170514git0370701.fc28.noarch

Please find attached the published repo update list