pythonpath_reduction: Corrections
- Minor correction. Actually, we don't need the prerequisites install dir
- Upgrade pythonpath_reduction.py script
Using argparse, add options to customize :
* salome-install-dir
* context-file name
* env-file name
- Backup of files is done. These backups are used at start if they exist.
This allows to use this script several times.
On linux, in the python_modules directory, symlinks are created instead of copies.
- Fix remove link and add ignore option
- Only one directory is mandatory
- Install site-patch.py from setuptools
- Minor correction; get absolute path of salome_install_dir, embed paraview pythonpath into python_modules
