Initial work on a ct test suite for the HTTP protocol.

Handles two basic tests for both HTTP and HTTPS.
Also renames 'make test' into 'make tests'.

test/http_handler.erl

@@ -0,0 +1,15 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+-module(http_handler).
+-behaviour(cowboy_http_handler).
+-export([init/3, handle/2, terminate/2]).
+
+init({_Transport, http}, Req, _Opts) ->
+	{ok, Req, undefined}.
+
+handle(Req, State) ->
+	{ok, Req2} = cowboy_http_req:reply(200, [], "http_handler", Req),
+	{ok, Req2, State}.
+
+terminate(_Req, _State) ->
+	ok.