PX4/Firmware — pull request #1501 by friekopter (2014-12-15 15:46:32+00:00)
Title: implemented mission switch

This functionality allows to store 4 missions on the sdcard. Simply pushing roll in standby mode changes between stored missions.
In order to make data migration more stable a version number is added to the dataman file. For now migration between two versions means deleting all data and setting up a new database.
As a consequence all stored data by dataman is deleted by running this feature for the first time.