updated ethereum.js and moved to subfolder

* Previous subtree caused a lot of trouble
* Implemented sha3 in our shiny new http JSON RPC

cmd/mist/assets/ext/http.js

@@ -0,0 +1,30 @@
+// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+// MA 02110-1301  USA
+
+// this function is included locally, but you can also include separately via a header definition
+function request(url, callback) {
+	var xhr = new XMLHttpRequest();
+	xhr.onreadystatechange = (function(req) {
+		return function() {
+			if(req.readyState === 4) {
+				callback(req);
+			}
+		}
+	})(xhr);
+	xhr.open('GET', url, true);
+	xhr.send('');
+}