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/googlelinks.js

@@ -0,0 +1,40 @@
+/*jshint strict:false*/
+/*global CasperError console phantom require*/
+var links = [];
+var casper = require("casper").create();
+
+function getLinks() {
+    var links = document.querySelectorAll("h3.r a");
+    return Array.prototype.map.call(links, function(e) {
+        try {
+            // google handles redirects hrefs to some script of theirs
+            return (/url\?q=(.*)&sa=U/).exec(e.getAttribute("href"))[1];
+        } catch (err) {
+            return e.getAttribute("href");
+        }
+    });
+}
+
+casper.start("http://google.fr/", function() {
+    // search for 'casperjs' from google form
+    this.fill('form[action="/search"]', { q: "casperjs" }, true);
+});
+
+casper.then(function() {
+    // aggregate results for the 'casperjs' search
+    links = this.evaluate(getLinks);
+    // now search for 'phantomjs' by fillin the form again
+    this.fill('form[action="/search"]', { q: "phantomjs" }, true);
+});
+
+casper.then(function() {
+    // aggregate results for the 'phantomjs' search
+    links = links.concat(this.evaluate(getLinks));
+});
+
+casper.run(function() {
+    // echo results in some pretty fashion
+    this.echo(links.length + " links found:");
+    this.echo(" - " + links.join("\n - "));
+    this.exit();
+});