Replace tests.base part7

It is the next step to replace using ceilometer.tests.base with
openstack.common.test.
In this patch is changed for using
openstack.common.test and added needed fixtures in
test classes.

Change-Id: I691cb45bf591fbb1ab68eb1faca07f1772dcea0b
Fix the developer documentation of the alarm API

Add body parameter in PUT/POST alarm method.
Add boundary to the BoundedInt doc name.
Remove no more existing alarm_id in put/get_one wsexpose method.
Use state wsme enum instead of unicode string for alarm state get/put
even wsme validation won't work to have the documentation generated
correctly.

Update sphinxcontrib-pecanwsme to generate the documentation of get, put
and custom pecan method.

Change-Id: I9587f3d640cc768a3d788542d2af138411dcee60
Merge "Replace tests.base part7"
Merge "Fix the developer documentation of the alarm API"