paparazzi/paparazzi — pull request #644 by gautierhattenberger (2014-02-26 15:43:58+00:00)
Title: [ins] reset reference position from INS not from NAV

Nav is (almost) independent of the GPS which is a sensor and should only
be seen by the INS/AHRS subsystems.
It also allow to make shared INS filters more easily (example with
invariant filter).