add whatsitdoing test and change to groundhog to support getting an app

demo/whatsitdoing.py

@@ -0,0 +1,17 @@
+from groundhog import Groundhog
+from repoze.profile.profiler import AccumulatingProfileMiddleware
+from paste.httpserver import serve
+
+# application
+
+app = Groundhog(__name__, 'seekrit')
+
+@app.route('/')
+def root():
+    return 'hello'
+
+if __name__ == '__main__':
+    wsgiapp = app.get_wsgiapp()
+    wrapped = AccumulatingProfileMiddleware(wsgiapp)
+    serve(wrapped)
+

groundhog.py

@@ -94,6 +94,10 @@ def decorator(func):
             return func
         return decorator
 
+    def get_wsgiapp(self):
+        self.config.end()
+        return self.config.make_wsgi_app()
+
     def run(self, host=None, port=8080, debug=False):
         self.config.end()
         app = self.config.make_wsgi_app()