Worked around a problem with detecting a closed HTTP connection when the...

Worked around a problem with detecting a closed HTTP connection when the headers are set in literal mode. Thanks to Martijn Pieters for pointing out that this happens in some WebDAV responses.

ZServer/HTTPResponse.py

@@ -252,7 +252,8 @@ class ChannelPipe:
         if response.headers.get('bobo-exception-type', '') == \
                 'exceptions.SystemExit':
             self._shutdown=1
-        if response.headers.get('connection','')=='close':
+        if response.headers.get('connection','') == 'close' or \
+                response.headers.get('Connection','') == 'close':
             self._close=1
         self._request.reply_code=response.status
         

lib/python/ZServer/HTTPResponse.py

@@ -252,7 +252,8 @@ class ChannelPipe:
         if response.headers.get('bobo-exception-type', '') == \
                 'exceptions.SystemExit':
             self._shutdown=1
-        if response.headers.get('connection','')=='close':
+        if response.headers.get('connection','') == 'close' or \
+                response.headers.get('Connection','') == 'close':
             self._close=1
         self._request.reply_code=response.status