Add a minimal and plain stdweb example

stdweb/src/lib.rs

@@ -0,0 +1,18 @@
+#![feature(custom_attribute)]
+
+extern crate stdweb;
+extern crate wasm_bindgen;
+
+use wasm_bindgen::prelude::*;
+
+use stdweb::web::document;
+use stdweb::web::INode;
+use stdweb::web::IElement;
+
+#[wasm_bindgen]
+pub fn run() {
+    let doc = document();
+    let val = doc.create_element("p").unwrap();
+    val.set_attribute("innerHTML", "IT IS ALIVE").unwrap();
+    doc.body().unwrap().append_child(&val);
+}