[EDITOR UTILS] always catch exceptions when rendering HTML (#1904)
[EDITOR UTILS] always catch exceptions when rendering HTML (#1904)

SDESK-5353
petrjasek/superdesk-core,petrjasek/superdesk-core,petrjasek/superdesk-core,superdesk/superdesk-core,superdesk/superdesk-core,petrjasek/superdesk-core,superdesk/superdesk-core,superdesk/superdesk-core