Clean up the endpoint filtering configuration docs

There were a few grammatical errors seen in the docs, this patch
should clean those up.

Change-Id: I9815289444763450131fa9cd87f725bfc7a92aa6
Make sure unit tests set the correct log levels

Unit tests appear to not set the expected logging levels so
a number of modules will log excessivly (e.g. ISO8601).

This change ensures the base test classe sets the correct logging
levels (in the same way as the openstack.common.log module).

Change-Id: Ic11b7adee5f27f71094b4ef2b4a635f78f83cba8
Closes-Bug: #1340970
render json examples with syntax highlighting

Change-Id: I5727bc7ed967f81ab63b0d031b9a6d6da673da3a
Merge "Make sure unit tests set the correct log levels"
Merge "Clean up the endpoint filtering configuration docs"
Merge "render json examples with syntax highlighting"