ci: add `--registry` flag to `dist-tag` command
ci: add `--registry` flag to `dist-tag` command

This includes a new `--registry` flag to the `dist-tag` command and defaults it to Wombat. This way NPM commands will explicitly use the correct registry.

clydin/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,ocombe/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,ocombe/angular-cli,geofffilippi/angular-cli,ocombe/angular-cli,clydin/angular-cli,Brocco/angular-cli,catull/angular-cli,catull/angular-cli,clydin/angular-cli,Brocco/angular-cli,geofffilippi/angular-cli,Brocco/angular-cli,angular/angular-cli,ocombe/angular-cli,angular/angular-cli,catull/angular-cli,catull/angular-cli,angular/angular-cli,angular/angular-cli,ocombe/angular-cli,clydin/angular-cli