For @codefolio .

* v0.5
* Scarpe now has a site - complete with Shoes documentation and our robust Scarpe architecture documentation https://scarpe-team.github.io/scarpe/
* Logo update
* Support for "class MyApp < Shoes" inheritance DSL. We only supported `Shoes.app do` before
* Multiple bugfixes, including internal links
* External background images now work
* gem install now works out of the box. No bloops/portaudio workaround
* More working Shoes examples

PR: https://github.com/scarpe-team/scarpe/pull/574