CMFForum1.0:
 
        - Anonymous can post by default but cant add Attachments

	- Anonymous can set Author and Email fields

	- Logged in user gets 'username' as Author and email from
	preferences

	- Security cleanup. 

**Changes made to enable forum in discussions**

	- Added DiscussionTool

	- Made a DiscussionTool in CMFForum. It injects a Forum into discussable objects.The regular DiscussionTool injects a DiscussionItemContainer from CMFDefault.

	- Updated actions, reply now uses the post form from CMFForum instead of the discussion one.

	- __init__.py in CMFForum: The new DiscussionTool is registered utils.ToolInit so it can be instantiated inside Zope.Registering Forum and Post independently as they need different permissions.

	- viewThreadsAtBottom.pt in skins/zpt_forum: This is the widget that is showed on the bottom of each page.The code is similar to that from forum_listing. It has to override the regular viewThreadsAtBottom.pt from plone/cmf. Added permission checks on the reply button as it would be confusing for the user to see the button but not being able to post.