Add some rally scenarios

This change adds configuration directory for rally.

Implements blueprint rally-gate-check

Change-Id: I49ed3025bb90355b851526af9b5a469c7c84fdc9
Modify tests to support ordering of wsme types

When PYTHONHASHSEED is enabled the ordering of the wsme types are changed.
This fails the tests that take the type order into account when an assertEqual
is checked on the error message. The assertEqual is now changed to an
assertIn where the ordering of the types do not matter.

Change-Id: I0f445013802273478f5f448fa0350b9a1b140414
Closes-bug: #1399631
Merge "Modify tests to support ordering of wsme types"
Merge "Add some rally scenarios"