This commit is a follow-up of "switch to using stestr"
which was merged already [1].
After switch to using stestr, testrepository and .testr.conf
are unnecessary and should be removed.
[1] https://review.openstack.org/576862
Change-Id: I9f35e4f1341848a62a143b7f7150f2b845575861
Complex query computes the single complex query to multiple simple
queries which only use AND operator, each simple query will invoke
get_samples() method. Complex query collects all the results till
limit constraint is satisfied.
Change-Id: I0da398d4d3627fcbfe2c686acf5b0fa9a68492b7
Martin Chacon Piza