feature: reordering pages

[gra...@gmail.com]

Hi,

just tried gwd. Really great stuff!
I only miss two things at the moment, to be able to recommend it to non coders

- Pages should be sortable in gui
There is an event , go to next page.
With this feature we could make great product presentations for the web.

- Adding class names to a div in gui
easy inclusion of predefined css, like boostrap components.

- text properties for text-divs in the gui
gui for font,size, ...

Thank you google
really nice product, great solution for the responsive layout