core: let pyramid handle tracebacks for all exceptions.

Otherwise we'll miss exception caused in pure pyramid view.

rhodecode/config/middleware.py

@@ -227,6 +227,8 b' def error_handler(exception, request):'
         log.exception('failed to fetch settings')
         rc_config = {}
 
+    log.exception(
+        'error occurred handling this request for path: %s', request.path)
     base_response = HTTPInternalServerError()
     # prefer original exception for the response since it may have headers set
     if isinstance(exception, HTTPError):

rhodecode/lib/middleware/error_handling.py

@@ -76,7 +76,6 b' class PylonsErrorHandlingMiddleware(obje'
         except HTTPError as e:  # pyramid type exceptions
             return self.error_view(e, request)
         except Exception as e:
-            log.exception(e)
 
             if self.reraise():
                 raise