What is the `requestQueue`?

The request queue is used to simplify app-level connection logic--
i.e. so you don't have to wait for the socket to be connected
to start trying to  synchronize data.

@api private
@param  {SailsSocket}  socket
function runRequestQueue (socket) {
      var queue = socket.requestQueue;

      if (!queue) return;
      for (var i in queue) {

        // Double-check that `queue[i]` will not
        // inadvertently discover extra properties attached to the Object
        // and/or Array prototype by other libraries/frameworks/tools.
        // (e.g. Ember does this. See https://github.com/balderdashy/sails.io.js/pull/5)
        var isSafeToDereference = ({}).hasOwnProperty.call(queue, i);
        if (isSafeToDereference) {
          // Emit the request.
          _emitFrom(socket, queue[i]);
        }
      }

      // Now empty the queue to remove it as a source of additional complexity.
      queue = null;
    }