added front page samples to testing, plus a couple of tweaks to front page and code lab

src/tests/site/code/types_no.dart

Index: src/tests/site/code/types_no.dart
diff --git a/src/tests/site/code/types_no.dart b/src/tests/site/code/types_no.dart
index d97a6ff64f575319b770f4d5637d0287bc4ef8d0..c444aabb40d9ece1a043b6f0634c69e3070f5150 100644
--- a/src/tests/site/code/types_no.dart
+++ b/src/tests/site/code/types_no.dart
@@ -1,3 +1,10 @@
+//import 'dart:math' show Point;

[Kathy Walrath, 2013/11/23 00:46:27]

Why have this line in the test?

+
+void main() {
+  print('Hello World!');
+  recalculate(1, 'bob', 3);
+}
+
 // Without types.
 recalculate(origin, offset, estimate) {
   // ...