Added Env#versionString; nicer styling in TrivialReporter; hide passed and skipped tests by default, but allow them to be displayed.

src/Env.js

@@ -46,6 +46,18 @@ jasmine.Env.prototype.version = function () {
   }
 };
 
+/**
+ * @returns string containing jasmine version build info, if set.
+ */
+jasmine.Env.prototype.versionString = function() {
+  if (jasmine.version_) {
+    var version = this.version();
+    return version.major + "." + version.minor + "." + version.build + " revision " + version.revision;
+  } else {
+    return "version unknown";
+  }
+};
+
 /**
  * @returns a sequential integer starting at 0
  */