Create initial project for font downloader
Removed the guff we don't need from the project template
App now downloads a list of available fonts

Will download specific fonts next
Font downloading now works as expected

Can't match a full descriptor, we have to match the font name instead.
License headers
Adds a font-family level to the app's navigation
Tidies up some bits and pieces. Completes the sample project for day22
Creates template for downloadable fonts writeup
First couple of sections completed
Completed the copy
Adds screenshots
Fix a couple of typos
Merge branch 'days/22-downloadable-fonts'