[lib/run_demo_base.py] setting current working directory to self.work_dir removing the need to use this variable in the DDLs
[lib/run_demo_base.py] setting current working directory to self.work_dir removing the need to use this variable in the DDLs

mcolom/ipolDevel,mcolom/ipolDevel,mcolom/ipolDevel,mcolom/ipolDevel