WYSIWYG editor

I added the ability to use a WYSIWYG ("what you see is what you get") editor. To use it, when you are writing a blog post or a comment, look for the 'enable rich-text' link under the text window. You should see a bunch of buttons that look familiar to a word processor appear in the text window. You can use a bunch of different formatting tools in that mode for justification, bold, lists, inserting links, etc. There is an option for IE spell check (which does nothing in Firefox), but since it was requested by Colin it's there for him!