patch applied (ghc): Various documentation improvements suggested by Bulat Ziganshin

[Ian Lynagh]

Mon Sep 25 16:18:55 PDT 2006  Ian Lynagh <igloo at earth.li>
  * Various documentation improvements suggested by Bulat Ziganshin

    M ./docs/users_guide/6.6-notes.xml -14 +38
    M ./docs/users_guide/glasgow_exts.xml -3 +8
    M ./docs/users_guide/phases.xml -1 +6