2022-12-21

• Syntax check by AT command adapted to cope with command without argument types
• VNAV descent mode now accounts for turndist in case of small altitude changes and large course deviations to make VNAV more robust for small vehicles.
• Relocation of plugins to inside bluesky package (bluesky.plugins)
• change vmax to actual speed fpor calculation dx to turnspd
• Fixed importlib resource access problems for python versions < 3.10
• Miscellaneous small fixes and edits