Resolve defect in Prefix setup master and Entity color master.

1) In Prefix setup mast screen is validating Please enter Valid Effective Date on updating any listed record.
2) In Entity color master, when record is selected for edit then the color remains blank and does not allow to delete the record.
3) In Add and Update Change label name from Employee code to color in entity color master.
4) If screen permission for entity color master is removed than still the screen can be accessed.