Log Message:
update to boolean-6.4

Changes since last packaged version:

   Version 6.4

   Graphical interface
    1. Filedialog now has filters for Linux also.

   Boolean algorithm (also effects booleanonly)
    1.  Error corrected in correction settings.

   Version 6.3

   Graphical interface
    1. Based on wxWindows 2.3.4
    2. cmake now used to create projects and makefiles

   Boolean algorithm (also effects booleanonly)
    1.  Using the kbool library with the Boolean engine.

   Version 6.21

   Graphical interface
    1. and it did not even save gdsii or key files properly,
       i just wonder why no one did let me know ;-)