Use ratpack promises instead of streams for async values that represents one value.
Use ratpack promises instead of streams for async values that represents one value.

(The futura promises and completable future instances as response return value
are now handler in more efficient way)

prepor/catacumba,funcool/catacumba,prepor/catacumba,coopsource/catacumba,funcool/catacumba,coopsource/catacumba,mitchelkuijpers/catacumba,funcool/catacumba,mitchelkuijpers/catacumba