another goconvey test for RequestOffer, fix data race in the Broker test

			So(len(ctx.idToSnowflake), ShouldEqual, 1)

		})

		/*

		Convey("Broker goroutine matches clients with proxies", func() {

			ctx2 := NewBrokerContext()

			p := new(ProxyPoll)

			p.id = "test"

			p.offerChannel = make(chan []byte)

			go func(ctx *BrokerContext) {

				ctx.proxyPolls <- p

				close(ctx.proxyPolls)

			}(ctx)

			ctx.Broker()

			So(ctx.snowflakes.Len(), ShouldEqual, 1)

			snowflake := heap.Pop(ctx.snowflakes).(*Snowflake)

			snowflake.offerChannel <- []byte("test offer")

			offer := <-p.offerChannel

			So(ctx.idToSnowflake["test"], ShouldNotBeNil)

			So(offer, ShouldResemble, []byte("test offer"))

			So(ctx.snowflakes.Len(), ShouldEqual, 0)

		})

		Convey("Request an offer from the Snowflake Heap", func() {

			done := make(chan []byte)

			go func() {

				ctx2.proxyPolls <- p

				close(ctx2.proxyPolls)

				offer := ctx.RequestOffer("test")

				done <- offer

			}()

			ctx2.Broker()

			So(ctx2.snowflakes.Len(), ShouldEqual, 1)

			So(ctx2.idToSnowflake["test"], ShouldNotBeNil)

			request := <-ctx.proxyPolls

			request.offerChannel <- []byte("test offer")

			offer := <-done

			So(offer, ShouldResemble, []byte("test offer"))

		})

		*/

		Convey("Responds to client offers...", func() {

			w := httptest.NewRecorder()