Add moduel MyPlace::History.

	Add file: History.pm
Implement object interface for MyPlace::Script::Message.

	Update file: Program/Download.pm
	Update file: Script/Message.pm
Add String::Utils.

	Add file: String/Utils.pm
	Update file: History.pm
	Update file: ReEnterable.pm
	Update file: Script/Message.pm
use URI to create URI for downloading.

	Update file: Program/Download.pm