[Therion] new Therion 5.5.3

[Therion]

Hi, there is a new release 5.5.3 of Therion.
Release notes:

v5.5.3          Therion 5.5.3 (2020-10-17):
    
    therion:
     * mil/mils angle unit deprecation warning [#129]
     * sql export shot length precision increase [#147]
     * bugs fixed
       - incorect calculation of station position when fixed multiple times
         [#269,270]
       - memory leaks causing some random behaviour [#278]
       - scale value should default to 1 when omitted from "calibrate" [#263]
    
    loch:
     * splay shots are rendered with darker colour
     * duplicate shots displayed by default
     * small bug fixes

Best regards,
Therion team