Added new index page and refactored some code for re-usability

Signed-off-by: Jon Yardley <jonyardley@me.com>
upgraded marionette to 1.6.1

Signed-off-by: Jon Yardley <jonyardley@me.com>
updates to images page

Signed-off-by: Jon Yardley <jonyardley@me.com>
updates to index to counter image changes

Signed-off-by: Jon Yardley <jonyardley@me.com>