prepare release 0.19.0
prepare release 0.19.0

EvilMcJerkface/crate,gmrodrigues/crate,aslanbekirov/crate,aslanbekirov/crate,puneetjaiswal/crate,sunny256/crate,adrpar/crate,puneetjaiswal/crate,adrpar/crate,sunny256/crate,puneetjaiswal/crate,adrpar/crate,gmrodrigues/crate,husky-koglhof/crate,EvilMcJerkface/crate,crate/crate,husky-koglhof/crate,husky-koglhof/crate,gmrodrigues/crate,crate/crate,EvilMcJerkface/crate,crate/crate,sunny256/crate,aslanbekirov/crate