since standard_message_icons was merged into standard_message.css, it can be removed
update index.html to point to new filenames
Create standard_message_demos, move index.html to standard_base_demos.html
added index to point at standard demo pages
tidy up the examples a tiny bit... add appropriate headers.
content added to index.html
Merge pull request #2 from edwelker/add_images

Add images