Port ucrypt.py to Javascript

Please port userify's [login to view URL] to Javascript. [login to view URL] This will require use of NaCl. For example, [login to view URL] And also, zlib or gzip, such as: [login to view URL] (buffers) [login to view URL] (streams) This is *not* a browser-side project. Only server-side (node). Ideally, the result will be a pkg-able command line utility using something like: [login to view URL]