Use the correct directory for image files in tempest

Change-Id: Ic40065a04b8015333b4cb6844211e9a0afb9d4c1
Fixes nova-compute failing to start on Fedora 18

Fixes bug #1086784
Adds a rule to the policy-kit allowing the stack user to manage libvirt

Change-Id: I6e9c0106c932f5f5f5c5c18ff79ac81a050c4599
Set MySQL slow log to record every query

Since devstack is for development, lets record all SQL queries to enable
debugging, and further development.

Change-Id: Idb4078a0d3a84151ad4c506f8861637d84ae47ad
Merge "Use the correct directory for image files in tempest"
add numpy to package list, saves lots of time

websockify was added to the pip requires, and it has a dependency
of numpy. Because we didn't specify it in the package list, it was
built from source every time, adding 3 minutes to an average run.

Stop testing whether numpy compiles 100 times a day in CI.

Change-Id: Ic9d9b8135a917deb846911c6b266aec87d05781a
Merge "Fixes nova-compute failing to start on Fedora 18"
Merge "add numpy to package list, saves lots of time"
Merge "Set MySQL slow log to record every query"