[Therion] new Therion 5.5.7

[Therion]

Hi, there is a new release 5.5.7 of Therion.
Release notes:

v5.5.7          Therion 5.5.7 (2021-02-06):
    
    therion:
     * added --generate-output-crc, --verify-output-crc options
     * error raised when unknown command line option used
     * version number ends with '-dev' if there are uncommitted local changes
     * optimizations:
       - much faster processing of fixed stations with associated CRS data
       - faster check for optional fonts
     * bugs fixed:
       - survey selection ignored when exporting 3d model from splay shots
       - "cs local" bugfix
       - scrap 3d reconstruction spike artifact fix
       - selection logging bugfix
       - svg/xhtml map export without filename creates cave.pdf file
    
    make:
     * better detection of wx-config variants
     * innosetup.ini is generated in the build directory

Best regards,
Therion team