Correct tag name for core components

We changed the artifactId in quattor/configuration-modules-core@460640e
but the publishing code was still attempting to use the previous artifactId
this left the repository at the HEAD of master which led to SNAPSHOT versions
being pushed into quattor/template-library-core.
Merge pull request #52 from jrha/fix-core-template-publishing

Correct tag name for core components
get-template-library: update pattern for template-library-core tags
(restrict to tags matching template-library- as other tags are now obsolete)
Merge pull request #56 from jouvin/get-template-library

get-template-library: update pattern for template-library-core tags
Build packages for client and yum repositories

As discussed at Madrid workshop.

Fixes #16.
Fixes #17.