Use own Starscream repository to avoid conflicts between different CommonCrypto dependencies
Use own Starscream repository to avoid conflicts between different CommonCrypto dependencies

Kitura-Websocket relies on IBM-Swift/CommonCrypto, whereas the original Starscream relies on daltoniam/common-crypto-spm, which both provide a module called 'CommonCrypto'. Our custom version of Starscream uses IBM's CommonCrypto as well, fixing the issue. In the future we should probably start using the original Starscream again.

pixelspark/catena,pixelspark/catena,pixelspark/catena