0.6.0-rc.0

This is a big rewrite that will allow invoking angular-cli-ghpages via ng deploy.
Deployments via Angular CLI will be available in @angular@next (v8.3.0-next.0 or greater)

Example:

ng new your-angular-project --defaults
ng add angular-cli-ghpages@next
ng deploy --repo=https://github.com/angular-schule/angular-cli-ghpages-testdrive.git

Please note: In the past this project was a standalone program (e.g npx angular-cli-ghpages). This is still possible! See the documentation at README_standalone.

See PR #60. This fixes #59
Many thanks to @mgechev.