[themes] Proposal to approach theming on a modular basis

[Kieran Lal]

http://drupal.org/node/44233#comment-82522
http://drupal.org/node/38148

If someone is interested in helping with a theme snippets page I'll  
create it in the handbook.

This page is still looking to have the comments reduced and included:  
http://drupal.org/node/23348

Cheers,
Kieran