assets/css: Add Flat-UI CSS.

See:
  http://designmodo.com
assets: Add Flat-UI fonts
Remove redundant git ignore entry
assets/flat-ui.css: Remove protocol from url
assets/flat-ui.css: Apply site theme
Add a styles template page

This test page is intended to demo all of the commonly used features for
the site.
index: Add fb meta tag
software: Port to Flat UI
assets: Add extra Flat UI components
assets/js: Add select and switch bootstrap plugins
assets/js: Add placeholder and tagsinput jQuery plugins
assets/flat-ui.css: Theming work
style: Theming work
pictures: Port to Flat UI style
assets/flat-ui.css: Add content frames
music: Port to Flat UI
index: Port to Flat UI
index: Port to Flat UI
Fix brand links
index: Refactor of feedback-form