Allow individual specs to be rerun; show skipped tests in gray.

contrib/ruby/run.html

@@ -12,6 +12,18 @@
   <script type="text/javascript">
     var jasmineEnv = jasmine.getEnv();
     var jsApiReporter = new jasmine.JsApiReporter();
+    jasmineEnv.specFilter = function(spec) {
+      var paramMap = {};
+      var params = document.location.search.substring(1).split('&');
+      for (var i = 0; i < params.length; i++) {
+        var p = params[i].split('=');
+        paramMap[decodeURIComponent(p[0])] = decodeURIComponent(p[1]);
+      }
+
+      if (!paramMap["spec"]) return true;
+      return spec.getFullName().indexOf(paramMap["spec"]) > -1;
+    };
+
     jasmineEnv.addReporter(jsApiReporter);
     jasmineEnv.addReporter(new jasmine.TrivialReporter());
     window.onload = function() {