Make ChiefController.load_data() load_observer argument optional.
Make ChiefController.load_data() load_observer argument optional.

robotframework/RIDE,robotframework/RIDE,caio2k/RIDE,fingeronthebutton/RIDE,HelioGuilherme66/RIDE,robotframework/RIDE,HelioGuilherme66/RIDE,robotframework/RIDE,fingeronthebutton/RIDE,HelioGuilherme66/RIDE,HelioGuilherme66/RIDE,fingeronthebutton/RIDE,caio2k/RIDE,caio2k/RIDE