Fix issue with namspaces in printExceptionReportResponse when Header were already created.

git-svn-id: http://svn.zoo-project.org/svn/trunk@483 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3
Update testing script for the WPS Benchmarking.

git-svn-id: http://svn.zoo-project.org/svn/trunk@484 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3