add pyfaf.queries, move stuff from faf-stats-components

also adding missing executable flag to faf-stats-components

related to #141.

Signed-off-by: Richard Marko <rmarko@redhat.com>
Signed-off-by: Michal Toman <mtoman@redhat.com>
hub: implement daily statistics page(s)

Closes #155

Signed-off-by: Richard Marko <rmarko@redhat.com>
Signed-off-by: Michal Toman <mtoman@redhat.com>