#18 The enhance for Exec command

[Steven]

I have enhanced the script command Exec to support specifying startup directory for the running command. The original command is:
exec <command> [count=<number>][onpass=<command>] [onfail=<command>] [outfile=<file_name>] [wait=<time>]
I enhanced it by adding an option:
exec <command> [count=<number>][onpass=<command>] [onfail=<command>] [outfile=<file_name>] [startup_dir=<dir_name>] [wait=<time>]

The change is done upon codeline of 2.0.6. Please see attached files.

[Steven]