Move heat_launcher data to /var/log/heat-launcher
Move heat_launcher data to /var/log/heat-launcher

We don't want to use /var/tmp anymore because we need a place that is
persistent and consistent with other services.

Also, we need to secure the directory because it containers heat sqlite
with passwords.

Depends-On: I60d086dbbd0be409ff78c35ebce3f25b6ba5c908
Change-Id: I50d786cb19536ca6a7cea62cf57466b5302e8a42

openstack/python-tripleoclient