Forms redesign

* Started forms redesign to fit new renderer api
Forms, renderer

* Added code for radio buttons and multicheckboxes
* Widgets with one input do not require <ul>
Date picker
Widgets

* Added several useful form widgets
Locales, time formats

* Added basic date formats
Forms, template

* Dropped old form template code
Forms 3

* Fixed some widget behavior
* Enhanced form functions
* Separated form code into tinier containers
Forms, Location widget

* Location widget is now represented under it's own ident
Forms, Action widget

* Widgets with $action set to none returns always none
Forms3, Date picker

* Date picker does not hide calendar on click
PWF base script, scan

* Added scan function that invokes all modules with method scan on element
Date picker, code

* Shortened date picker code
Forms, Date picker

* Added keyboard scan for date input
Forms, Time picker

* Added simplest time picker
Forms3, Image input

* Fixed image input
Forms, input

* Dropped unused code
Forms, rte

* Registered rte as widget
Response, format

* Response format is determined by renderer output
Renderer

* Renderer outputs comments with slot start only to html formatted templates
Forms, widget

* Fixed widget object creation