Certain openstack components when built with sdist seem to
be missing, which will break either pbr (and setup.py) or
break doc building or i8ln building so make sure that we
pickup these paths if they are not automatically included.
Also include a few tracewriter tracking additions and few
wording adjustments.
Fixes bug: #1195842
Change-Id: I0ce68db9aa28fcc3b839c7583468927d0e2647c6
1075c1dc8e