Catch and warn when browse-url fails [IMMUTANT-511]
Catch and warn when browse-url fails [IMMUTANT-511]

coopsource/immutant,immutant/immutant,kbaribeau/immutant,immutant/immutant,coopsource/immutant,kbaribeau/immutant,kbaribeau/immutant,coopsource/immutant,immutant/immutant,immutant/immutant