Include standard/favorite Python scripts in module list
pxl:
-load python modules like c module
-return a list of all python c modules
-return user directory for modules
add all module search paths to sys.path>python modules can
import standard/favorite modules
vispa:
-when dropping a python script in the module list: copy python script to
user directory for modules
-warn if module exists
unclear questions:
-what shall happen if user favorite scripts are changed and analysis
depends on them
(from redmine: issue id 306, created on 2010-01-15)