Added 'cheroot' server adapter to list of server names, so it can be …

…selected from the command line and by name.

Alos added cheroot after cherrypy in the 'auto' adapter to make it future proof.

bottle.py

@@ -3526,7 +3526,7 @@ def get_event_loop(self):
 class AutoServer(ServerAdapter):
     """ Untested. """
     adapters = [WaitressServer, PasteServer, TwistedServer, CherryPyServer,
-                WSGIRefServer]
+                CherootServer, WSGIRefServer]
 
     def run(self, handler):
         for sa in self.adapters:
@@ -3542,6 +3542,7 @@ def run(self, handler):
     'wsgiref': WSGIRefServer,
     'waitress': WaitressServer,
     'cherrypy': CherryPyServer,
+    'cheroot': CherootServer,
     'paste': PasteServer,
     'fapws3': FapwsServer,
     'tornado': TornadoServer,