fix: A property hidden bug.
fix: A name mistake.
mov: Refactored the widget's structure.
opt: The widget's scripts namespace.
mov: Rename the 'get_pdoc' method.
opt: The namespace of widget scripts.
add: The protocol of pdoc.
add: Implemented the basic pdoc protocol.
doc: More details.
opt: Unify the PDT namespace.
doc: Widget namespace.
doc: Format.
add: Keyboard shortcuts.
opt: The widget editor alert info.
opt: Widget editor validation.
upd: Update the bowser.
fix: A multi-script loading bug.
add: CSS loading helper.
add: A switch to detect whether need to clone the widget.
add: A simple slider widget.