This cleans up this header and moves the functionality into more
useful places while reducing the include complexity but only pulling
in whats required.
- Optimized browser window caret, uses back-buffer now. ( So no content redraw is scheduled by the frontend just for a caret move )
- Fixed a double redraw issue when the browser reformat is pending and the AES also sends an redraw request because of the resize.
- Started to use netsurfs textarea instead of a custom implementation ( to reduce code size ).
svn path=/trunk/netsurf/; revision=13191
