merge dev branch into master - voxl-backup
The main new feature is 'voxl-backup', which use to backup / restore (at this point) the camera cal files.
For example:
~/ipk # voxl-backup
1 backup
2 restore
3 list
4 delete
1
[INFO] Initializing backup directory v0.1
[INFO] Initializing complete
[INFO] Backup starting
OK --> /data/backup/etc/snav/calibration.stereo.xml
OK --> /data/backup/home/root/.ros/camera_info/left.yaml
OK --> /data/backup/home/root/.ros/camera_info/right.yaml
[INFO] Syncing
[INFO] Backup complete