Catch and return 500 for catchable fatal errors
Catch and return 500 for catchable fatal errors

grumbelbart/zotero_dataserver_sualk,grumbelbart/zotero_dataserver_sualk,zebulon2/dataserver,grumbelbart/zotero_dataserver_sualk,zebulon2/dataserver,zebulon2/dataserver,zebulon2/dataserver,grumbelbart/zotero_dataserver_sualk