move hot/longterm queries from webfaf to pyfaf.queries

Signed-off-by: Richard Marko <rmarko@fedoraproject.org>
add faf stats

Forward ported faf-stats-* executables to stats action

supports:
faf stats --problems
faf stats --components
faf stats --trends

How to test:

Add some reports for F20 and run

$ faf stats --debug --components --problems --trends \
-o fedora --opsys-release 20 --graph --include-low-quality --last 30

Signed-off-by: Richard Marko <rmarko@fedoraproject.org>
spec: cat testsuite.log in case of failure
Merge remote-tracking branch 'origin/stats'

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

Conflicts:
	faf.spec.in
	src/pyfaf/queries.py
	src/webfaf/problems/views.py