#26745 Reduce the amount of markup and images required in the installation

Note that this patch is not ready to be applied.  A decision needs to be made on the images as they don't play well with browser caching.  Perhaps it can be avoided somehow?  It's less likely to impact a released version but is frustrating for the tester as it requires a cleared cache.

http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=26745

CAUTION: This change contains binary data.  Be careful to merge from the git branch and not a guthub diff.