Fix for #223, where the graph scale control did not clear out entries upon loading a new graph
Fix for #224, not unloading previous log data causing issues with new logs being loaded
Change to use a custom class for APM2.5 firmware uploading rather than Avrdude
Fix for .pro file which had files that no longer existed
Addition of "cancel" handling to APM firmware uploading, and small code cleanup in ApmFirmwareConfig