version 2.6.3

add: Online map - Prahou na kole

add: ability to disable "Optimization" for On-board calibration

add: predefined profiles for Track record

chg: information texts when downloading map

chg: another small improvements in GroundOverlay handling

chg: reduced memory requirements for TAR initialization

chg: better restoring of previous state for Geocache screen

fix: missing geocache logs

fix: parsing EXIF info, centering on imported point, Lambert proj in RMAP and more