- Changelog added
- CI integration improvements
- add ArduPilotCapabilities abstraction to get SITL binary information
- gdb and valgrind integration
- SITL instance-number and speedup options
- add option to preserve state between runs
- add option for defaults-filepath
- add option to specify a path to a SITL_BINARY to run in environment (and its SITL_DEFAULTS_FILEPATH)