18525 Fixed save bug in project-level default time sheet values, and added blank option for unit.
18525 Fixed save bug in project-level default time sheet values, and added blank option for unit.

cyberitsolutions/alloc,alexlance/alloc,alexlance/alloc,cyberitsolutions/alloc,cyberitsolutions/alloc,alexlance/alloc,alexlance/alloc,cyberitsolutions/alloc,alexlance/alloc,cyberitsolutions/alloc