Remove `--no-scripts` from composer call

Before I start changing existing behaviour: What was the reason for `no-scripts` in the composer-call?

        # Options to pass to composer when installing/updating
        set :composer_options,      "--no-scripts --no-dev --verbose --prefer-dist --optimize-autoloader"

The reason I ask is, that this scripts could be anything and this may be required in further steps. I faced a problem while I tried symfony-cmf/CreateBundle. It make use of composers script-handlers to download a javascript library, which is then used as assets. With capifony this library is missing.