Merge pull request #20 from jrha/master

Ensure release script does what it is supposed to
Remove obsolete SPMA and rpmt-py from the repository lists

We don't do releases (or notes) for these anymore.
Merge pull request #21 from piojo/notes-prune

Remove obsolete SPMA and rpmt-py from the repository lists
Do not pad dates with zeroes when suggesting a release number

i.e 14.2.0 rather than 14.02.0.
Build releases in a subdirectory

This is slightly less messy.
Abort release if max open file limit is too low

configuration-components-core has now reached a size where the default value
of 1024 is not sufficient, this should prevent the issues experienced while
releasing Quattor 14.2.0.