[Therion] therion 5.2.4 - changes

[Martin Sluka]

ustable version 5.2.4 is available

m.s.

list of changes:

therion:
  * georeferencing data added to pdf maps
  * support for splay shots without station names
  * bugs fixed:
    - BCRA3 and BCRA5 survey grades fixed
    - missing altitudes in cave list
    - atlas page exclusion
    - map header positioning using real numbers
    - attribute export to metapost

xtherion:

  * script for creation of OziExplorer MAP files for georeferenced  
maps (Help->Calibrate bitmap)
  * added import functions for PocketTopo export
    - centerline in text editor - File->Import->PocketTopo therion  
export
    - sketches in map editor - Backgroud Images->Insert->PocketTopo  
therion export
  * bugs fixed:
    -

loch:

  * added Tools->Options->Measurement system setup
  * bugs fixed: