Fix configuration to be in a single spot

[jmgasper]

Problem

In attempting to fix a recent HTTPS issue, I had to make changes all over the place because we aren't consistent at all in our configuration.

The item I had to update was TC_USER_PROFILE_URL. I reconfigured it on Heroku and the bug persisted. I then fixed the same URL in src/common/constants.js and bug persisted. I then fixed the same URL in src/front/src/app/helper.js and the bug persisted. I eventually fixed the same URL in src/front/src/components/common/navigation.controller.js before the issue was resolved.

There's no reason why the same URL is created and configured in 4 or 5 spots in the app.

Fix

• The configuration should all come from the environment.
• No URLs should be created that are also configured.
• All URLs should use https by default.