Fix for licensing conflict

Version 2.1.3 of [connect](https://github.com/senchalabs/connect) used [node-crc](https://github.com/alexgorbatchev/node-crc) as a dependency, which did not contain the proper licensing for legal reuse.  The latest version of connect removed this dependency and utilizes [buffer-crc32](https://github.com/brianloveswords/buffer-crc32) instead, which maintains a valid license.

See [PR from the connect repo](https://github.com/mdp/connect/commit/fe6ba40d7e309c2b613dbee72c1dcfb0f8afa58c) for more information.

This PR updates package.json to use the latest version of connect, which resolves any licensing conflict of using Bootstrap and all of it's dependencies.