Issue #311 : Fixed request for 'Pipeline' in `meta` XSLT function. Errors are now dealt with correctly so that the XSLT will not fail due to missing meta data.
Issue #311 : Fixed request for 'Pipeline' in `meta` XSLT function. Errors are now dealt with correctly so that the XSLT will not fail due to missing meta data.

gchq/stroom,gchq/stroom,gchq/stroom,gchq/stroom,gchq/stroom,gchq/stroom