Move frontend tests out of zerver/tests/.

This fixes an unfortunate bug where the backend tests in
zerver/tests.py were not being run automatically, and also makes these
a bit easier to find.

frontend_tests/casperjs/samples/googletesting.js

@@ -0,0 +1,26 @@
+/*jshint strict:false*/
+/*global CasperError console phantom require*/
+
+var casper = require("casper").create({
+    logLevel: "debug"
+});
+
+casper.start("http://www.google.fr/", function() {
+    this.test.assertTitle("Google", "google homepage title is the one expected");
+    this.test.assertExists('form[action="/search"]', "main form is found");
+    this.fill('form[action="/search"]', {
+        q: "foo"
+    }, true);
+});
+
+casper.then(function() {
+    this.test.assertTitle("foo - Recherche Google", "google title is ok");
+    this.test.assertUrlMatch(/q=foo/, "search term has been submitted");
+    this.test.assertEval((function() {
+        return __utils__.findAll("h3.r").length >= 10;
+    }), "google search for \"foo\" retrieves 10 or more results");
+});
+
+casper.run(function() {
+    this.test.renderResults(true);
+});