Cleaned up code, added support for lists, classes, attributes, and more. Added more test code, everything appears to be working. More cleanup and testing is needed.

src/ignite-html.js

@@ -0,0 +1,28 @@
+class IgniteProperty {
+    constructor() {
+        this.onPropertyChange = [];
+        this._value = null;
+    }
+
+    get value() {
+        return this._value;
+    }
+
+    set value(val) {
+        var old = this._value;
+        this._value = val;
+
+        for (var i = 0; i < this.onPropertyChange.length; i++) {
+            this.onPropertyChange[i](old, val);
+        }
+    }
+}
+
+class IgniteAttribute {
+
+}
+
+export {
+    IgniteProperty,
+    IgniteAttribute
+};