Explicitely add hardening CFLAGS.
Add gir files for gobject-introspection to the DEVEL template.

With this changes all %{datadir}/gir*/ folders (with current gobject-introspection "gir-1.0") automatically will be put into
into the devel packages.
Quality Agent: Replace "env ruby".

This commit adds a rule to replace "env ruby" with the correct run command "/usr/bin/ruby".