Fixes issue where just build srpm would be deleted as too old if
building for a newer looking disttag in mock. (i.e. f20 building for
f21)
Also generates more correct looking SRPMs in all cases.
Adding "builder.test = 1" to a target in releasers.conf will allow you
to submit test builds out to a yum repository. This can be useful for
automated nightly builds. This is done as a builder arg rather than a
CLI argument to prevent anyone from accidentally doing a --test release
for something important. Instead it is a feature you configure once for
your targets.
This is something to avoid using if possible, you wouldn't want to
require these for a builder that's the default for your project,
otherwise you'd need to specify it every time you ran the CLI.
However builders like the mock builder need to know which mock config to
use, and it could be multiple values for one project trying to do builds
for multiple OSs.
Adding a "builder.prop = value" to a releaser target section will pass
the valie prop to the builder configured.
