-scaffold code +models +routes +handlers +form

*   Removed some of the generated scaffolding code, mostly in

    *   `Handler/Home.hs`
    *   `config/models`
    *   `config/routes`
    *   `templates/homepage.hamlet`
    *   `Foundation.hs`

    with minor changes in other files.
*   Add models for `User` and `EulerSolution`, with file changes for them in

    *   `config/models`
    *   `Foundation.hs`
    *   `Import.hs`
    *   `Model.hs`
    *   `Model/EulerSolution.hs`
    *   `terrelln-me.cabal`
*   Add routes and handlers for the project-euler part of the website, and modify home route, with file changes for them in

    *   `Application.hs`
    *   `Handler/Euler.hs`
    *   `Handler/Home.hs`
    *   `config/routes`
    *   `templates/homepage.hamlet`
    *   `templates/homepage.julius`
    *   `templates/homepage.lucius`
    *   `templates/terrelln-me.cabal`
*   Add a form for submiting a probject-euler solution, with file changes for it in `Handler/Euler.hs`
*   Configure postgres settings in `config/postgresql.yml`
*   Add copyright to the settings file (`config/settings.yml`)
*   Set up authentication/authorization with file changes in

    *   `messages/en.msg`
    *   `Foundation.hs`