fixed bug where backtrace and cgi-data elements weren't saved to the xml payload
fixed bug where backtrace and cgi-data elements weren't saved to the xml payload

airbrake/airbrake-ios,akio46/airbrake-ios,rpassis/airbrake-ios,akio46/airbrake-ios,airbrake/airbrake-ios,rpassis/airbrake-ios