fix(ngMock): fix isSpecRunning to work for Mocha

When running inside Mocha, don't look in Jasmine's spec.queue.running.
It's not there. This is documented as issue angular#1467; I think this issue was
also responsible for angular#1589 and recent complaints in angular#1253.

Closes angular#1467.

Author: metamatt

src/ngMock/angular-mocks.js

@@ -1677,7 +1677,7 @@ window.jstestdriver && (function(window) {
   });
 
   function isSpecRunning() {
-    return currentSpec && currentSpec.queue.running;
+    return currentSpec && (window.mocha || currentSpec.queue.running);
   }
 
   /**