Version v7.13

Version 7.13 - 2021/08/19

• fix freeze bug
• fix terrain cache file bug
• task management
  • Use task defaults for start and finish height ref (MSL or AGL) when loading
    tasks from soarscore.com
• Kobo
  • fix crash in Kobo menu
• Android
  • fix GPS time from the Flytec Sensbox
  • support speed, track and acceleration from Flytec Sensbox
  • don't apply Geoid separation to Flytec Sensbox GPS altitude
  • use the 8 Hz vario from Flytec Sensbox GPS altitude instead of 1 Hz
  • restore full-screen mode properly after returning to XCSoar
  • disable full-screen mode in multi-window mode
  • make full-screen mode optional