RPM building

We must copy out Katello support libs for logging and configuration.
There's currently no better option. Sharing using gem is not usable from
Katello side because of bundler. Using symlinks and katello-common
dependency makes it hard for developers.
Automatic commit of package [signo] release [0.0.1-1].
HTTPS certificate configuration support

Katello backend uses HTTPS communication so you can set a path to a file
with a particular certificate of CA that katello instance uses.
Automatic commit of package [ruby193-signo] release [0.0.2-1].