add stubs for widgets
work on widgets
start using widgets in views
be very explicit when addressing constants
use some Unicode in Rake task messages
rename some SCSS files to start with underscore

Explanation: it seems they should be considered "partials" and be named starting with the underscore.
use <h5> elements for headers of subsections
remove horizontal lines from the main view
views: simplify _debug
views: show more runtime debugging info
experiments with font sizes and faces
add temporary-notes/ directory to .gitignore

Reason: temporary-notes/ directory will be used for ... temporary notes.
modify Main route handler module

Notable changes: when submitted to `extend`, it will now create some constants in the application class, which can be used to store "static" values.
add stubs for renderers