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.

(backported from commit 617d08a)
[juergh: Adjust context.]
Signed-off-by: Juerg Haefliger <juergh@protonmail.com>

bottle.py

@@ -3002,7 +3002,9 @@ def run(self, handler):
 
 class AutoServer(ServerAdapter):
     """ Untested. """
-    adapters = [WaitressServer, PasteServer, TwistedServer, CherryPyServer, WSGIRefServer]
+    adapters = [WaitressServer, PasteServer, TwistedServer, CherryPyServer,
+                CherootServer, WSGIRefServer]
+
     def run(self, handler):
         for sa in self.adapters:
             try:
@@ -3016,6 +3018,7 @@ def run(self, handler):
     'wsgiref': WSGIRefServer,
     'waitress': WaitressServer,
     'cherrypy': CherryPyServer,
+    'cheroot': CherootServer,
     'paste': PasteServer,
     'fapws3': FapwsServer,
     'tornado': TornadoServer,