(RE-2617) Set up config erbs for mocks

This commit goes through and takes a selection of mock configs and
updates them to be erbs and pe-version agnostic. This helps set up
dynamic generation of configs for different versions of pe.
(RE-2617) Update erbs to be pe-version agnostic

This commit changes all references to the old pe-version to the to be
replaced pe_version variable.
(RE-2617) Update manifests

This commit updates the init manifest to include the new
pe_mockdefaults. The mockdefaults manifest ensures the files are copied
over to /etc/mock/
(RE-2617) Update config erbs

This commit changes the download links from neptune to
enterprise.delivery to reflect our new system.
Merge pull request #85 from clantant/RE-2617/master/mocktemp

RE-2617 rpmbuilder to lay down mock erbs