don't add templates to scripts
Merge pull request #302 from ministryofjustice/feature/templates-fix

WIP: check where templates.js is
Add Flask-DebugToolbar back into local requirements
Merge pull request #303 from ministryofjustice/add-debug-toolbar-requirements

Add Flask-DebugToolbar back into local requirements
WIP: testing income threshold results
WIP
WIP
WIP
added first two single gross income tests
DRY up a little
added joint gross income scenarios
added over 4 children scenarios