Port some addons to XUL Explorer

I think the following addons might be of some use for XUL Explorer, thus made some quick-and-dirty patches to make them could work on it.

Chrome List: https://addons.mozilla.org/en-US/firefox/addon/4453
Extension developer's extension: http://ted.mielczarek.org/code/mozilla/extensiondev/
xpcomviewer: http://xpcomviewer.mozdev.org
cview (older xpcom viewer) http://hacksrus.com/~ginda/cview/
(but I'm based on the code on mozilla tree)

The patches and patched addons lie on:
http://bamanzi.inlsd.org/xul/xe-addons/

As an alternative to installing them in the extension manager, you can
also unpack each .xpi to xulexplorer/xulrunner/extensio

ns\.
Unpacking to xulexplorer/extensions won't work for XULRunner 1.8.

Not all features could work. Currently I just made sure they could be launched from the Tools menu.