Re: Release 0.20.0

> Mainly, things were reorganized / renamed in kernel. Compiled .js files
> changed a bit because of that. OTOH, migration helpers (in form of JS
> getters / setters spewing deprecation messages) are in place, so old
> code from 0.18.x (maybe even 0.17.x) should load fine. OTOH, if you are
> still in pre-0.20 Amber, it is advised to bump libraries to newest
> version and recompile all your app code to new 0.20.x format. One way to
> bump libs is described in
> http://blog.herby.sk/post/how-to-bump-all-your-dependencies. To
> recompile your code, you could either run `grunt` from your CLI if you
> keep your `Gruntfile.js` up to date; or do `Compiler recompileAll` in
> Workspace and after it finishes, commit all packages of your app (do not
> commit libs / amber itself), then reload.
>
> Do
>
> npm -g install amber-cli
>
> to be able to create new projects with `amber init` that use new version.
>
> Remove bower_components directory and run `bower install` in your
> project to update your 0.19.0-based projects.
>
> More on the changes in:
>
> https://lolg.it/amber/amber/src/0.20.0/CHANGELOG
> https://lolg.it/amber/amber/src/0.20.0/API-CHANGES.txt
>
> Herby
>