[FEATURE] Include Request URL in Exception log

Adding the requested URL in the log message for uncaught Exceptions can
ease the task of finding the particular page causing an error.

Change-Id: I39ffb7943c39a406c651dc30b2b2351347f0cad4
Resolves: #25924
Reviewed-on: http://review.typo3.org/1587
Reviewed-by: Stefano Cecere
Tested-by: Tim Duelken
Reviewed-by: Andy Grunwald
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn