Bugfix 32 broken agreement link

[epugh]

Description

Introduce a configurationSvc that gets values from the server side rendered site into a Javascirpt var and into the fornt end app. Consult the configurationSvc.hasTermsAndConditions() to decide if we show the checkbox, and if so provide the URL.

Motivation and Context

We only fixed server side rendered URLS. Also, this is our first example of a configuration driven change to the behavior of quepid, the checkbox on T&Cs showing up or not.

How Has This Been Tested?

Wrote a spec for the service, and then tested by hand with TC_URL= and TC_URL=http://example.com/agreement to confirm checkbox behavior.

Screenshots or GIFs (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• [] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [] My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• [] I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.