BRANCH 4.1:
  - fixed the PythonCmd reporting if a script doesn't exist
  - with the sqlserver_timestamp type, a disabled TextWdg is returned for editing.
BRANCH 4.1:
  - checked the edit widget first before setting the parent_wdg
BRANCH 4.1:
  - fixed the bug in Create New Column where the Enable Edit checkbox is disabled if the user hasn't selected any Widget type.
Merge branch '4.1' of https://github.com/Southpaw-TACTIC/TACTIC into 4.1
Merge branch '4.1' of https://github.com/Southpaw-TACTIC/TACTIC into 4.1