Changes to rpms/fulltree and rpms/dependencies
Dropping support for rpms/fulltree entirely. Since the package list now
consists of SRPM names rather than binaries, mapping to the old pungi
fulltree feature became obsolete.
Also, it was decided that automatic RPM-level dependency bundling is not
desirable. We're still keeping the rpms/dependencies switch but the
default value is now False.
Related card: taiga#327, taiga#171
Signed-off-by: Petr Šabata <contyk@redhat.com>