"Skilled Trombone"; fixes several issues opened against 0.9

We've now closed Issues #5, #6, #7, #8, #10, #11, which covered layout-, styling-, validation-, and flash message-related issues opened against 0.9, which was naively thought to be release quality.

Tagging as 1.0 delayed until Friday 8 January to account for possible addressing of the enhancement written up as Issue #9 ("Replace raw Sequal API with Lotus::Model) and possible detection of new bugs.

Believed to be README-complete.

With the merging of PR #4, this demo app is now believed complete per the list of features in the README. These include a "simple" demonstration of

1. A model-based form that
2. Uses a form builder, not raw HTML form tags, and
3. Fortitude widget-based views, operated from
4. Modern, simple-endpoint controller action methods that use
5. Form objects to wrap the model instance used.

I'll bump this to 1.0 on or about 1 January 2016 unless there are issues and/or PRs filed. Thank you for your support!