Qt provider

qt.js

+(function() {
+    var QtProvider = function() {};
+    QtProvider.prototype.send = function(payload) {
+        navigator.qt.postData(JSON.stringify(payload));
+    };
+    Object.defineProperty(QtProvider.prototype, "onmessage", {
+        set: function(handler) {
+            navigator.qt.onmessage = handler;
+        },
+    }); 
+
+    if(typeof(web3) !== "undefined" && web3.providers !== undefined) {
+        web3.QtProvider = QtProvider;
+    }
+})();