Make stack render reversal optional

* Fixes FCO completion funnel order
* Revert test data change made in 906849bd
Re-add .graph margin after removal from static

* Fixes Pivotal [#53304511]
Use mdash on FCO label instead of hyphen
Fix tiny input filter box after static broke it
Make Query model test more explicit
Work around timezone issue in FCO volumetrics collection
Merge pull request #124 from alphagov/bugfix-fco-stacks-order-53300323

Bug fixes: changes to static broke us, and the stack reversal we did broke FCO