implementing object handlers in Python.

object handlers

Added description of file.truncate().
Added warning to write() about buffering.

- Added windowbounds() function to help programmer with staggering
  windows
- Added event parameter to idle routine
- Added settext(label) method to menu entries
- Erase/invalidate only visRgn in stead of everything
- Correctly handle clicks in inactive ControlWindows

Updated minor things in the other documents (pathnames, etc)

import and reload() to run scripts.

mkpluginaliases.

Lib:toolbox folder.

destroyed python object.

Use atoi(), atol(), atof() instead of load_atomic for seed-up.

editor. More to come...

Fixed minor update bug in tlist