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/googlepagination.js

@@ -0,0 +1,54 @@
+/*jshint strict:false*/
+/*global CasperError console phantom require*/
+
+/**
+ * Capture multiple pages of google search results
+ *
+ * Usage: $ casperjs googlepagination.coffee my search terms
+ *
+ * (all arguments will be used as the query)
+ */
+
+var casper = require("casper").create();
+var currentPage = 1;
+
+if (casper.cli.args.length === 0) {
+    casper
+        .echo("Usage: $ casperjs googlepagination.js my search terms")
+        .exit(1)
+    ;
+}
+
+var processPage = function() {
+    var url;
+    this.echo("capturing page " + currentPage);
+    this.capture("google-results-p" + currentPage + ".png");
+
+    // don't go too far down the rabbit hole
+    if (currentPage >= 5) {
+        return;
+    }
+
+    if (this.exists("#pnnext")) {
+        currentPage++;
+        this.echo("requesting next page: " + currentPage);
+        url = this.getCurrentUrl();
+        this.thenClick("#pnnext").then(function() {
+            this.waitFor(function() {
+                return url !== this.getCurrentUrl();
+            }, processPage);
+        });
+    } else {
+        this.echo("that's all, folks.");
+    }
+};
+
+casper.start("http://google.fr/", function() {
+    this.fill('form[action="/search"]', {
+        q: casper.cli.args.join(" ")
+    }, true);
+});
+
+casper.then(processPage);
+
+casper.run();