#3926 - Documentation should also be accessible separately from demos

#3926 - Documentation should also be accessible separately from demos

<a href="http://ui.jquery.com/bugs/ticket/3926"> http://ui.jquery.com/bugs/ticket/3926</a>
In addition to the combined demos+docs (with demos at the top, and documentation in tabs below), it should be possible to view and navigate documentation stand-alone. This could be at urls like
<a href="http://ui.jquery.com/docs/draggable">http://ui.jquery.com/docs/draggable</a>
<a href="http://ui.jquery.com/docs/dialog#options">http://ui.jquery.com/docs/dialog#options</a>
<a href="http://ui.jquery.com/docs/dialog#options-modal">http://ui.jquery.com/docs/dialog#options-modal</a>
<a href="http://ui.jquery.com/docs/sortable#methods-serialize">http://ui.jquery.com/docs/sortable#methods-serialize</a>
<a href="http://ui.jquery.com/docs/accordion#theming">http://ui.jquery.com/docs/accordion#theming</a>
This way you can
1. link directly to a docs page that doesn't have demos above it
2. link more directly to a section, such as options, methods, theming
3. link even more directly to the description (and demo) of a specific option or method. This won't work on demos+docs because a) the principal content is the demo, and b) we use #hashlinks to go to individual demos
4. View all the documentation for a plugin in one page (no tabs)
5. Print all the documentation for a plugin in one page (no tabs)
- Richard