Add axisPeriod option to user satisfaction graph
Fix trim option on user satisfaction graph

The way you indicate that you don't want trimming is by setting
'trim' to false. Unfortunately, (false || true) is true, so you can
never disable trimming.

Be more explicit about checking the trim option for false.
Publish DVSA dashboards
Merge pull request #565 from alphagov/dvsa-user-satisfaction

DVSA user satisfaction tweaks