Chaco Resources Page Has Several Broken Links

[calabrian1598]

trafficstars

http://docs.enthought.com/chaco/user_manual/resources.html

Many links found on this page lead to 404 Not Found errors.

• http://code.enthought.com/projects/chaco/gallery.php
• https://www.enthought.com/repo/epd/webinars/2010-04InteractiveChaco/
• https://www.enthought.com/repo/epd/webinars/2010-10Building2DInteractiveVisualizations/
• http://code.enthought.com/projects/files/chaco_scipy06/chaco_talk.html
• http://code.enthought.com/projects/files/chaco_pycon07/
• http://code.enthought.com/projects/files/ETS3_API/enthought.chaco.html
• http://code.enthought.com/projects/files/ets_api/enthought.chaco2.html

[timdiller]

Looks like many of these are due to be fixed up by #462