issue #4: fix to unit test to remove user-agent that varies on every box

corepost/test/feature/filters.feature

@@ -25,7 +25,6 @@ Feature: Filters
     "accept-encoding": "gzip, deflate", 
     "custom-header": "Custom Header Value", 
     "host": "127.0.0.1:8083", 
-    "user-agent": "Python-httplib2/0.7.2 (gzip)", 
     "x-wrap-input": "Input"
 }
 		"""

corepost/test/filter_resource.py

@@ -28,6 +28,7 @@ class WrapAroundFilter():
     implements(IRequestFilter,IResponseFilter)
 
     def filterRequest(self,request):
+        del(request.received_headers["user-agent"]) # remove this for unit tests, it varies from one box to another
         request.received_headers["X-Wrap-Input"] = "Input"
     
     def filterResponse(self,request,response):