webcore: By friendlier to Python 2.6

We use logger.getChild(), which is available starting in
Python 2.7, which is fair since that's POX's requirement.
We now fall back to a dumb way of doing it which works
in 2.6.

pox/web/webcore.py

@@ -65,7 +65,12 @@
     from StringIO import StringIO
 
 log = core.getLogger()
-weblog = log.getChild("server")
+try:
+  weblog = log.getChild("server")
+except:
+  # I'm tired of people running Python 2.6 having problems with this.
+  #TODO: Remove this someday.
+  weblog = core.getLogger("webcore.server")
 
 def _setAttribs (parent, child):
   attrs = ['command', 'request_version', 'close_connection',