Re-added Paypal donate button, seems it went AWOL.
Try again with Paypal!
Tidy up

* image display (.wp-post-image)
* easy cc licence
Should be using full -sized image now
1st attempt to add columns to archives
Removed all references to yui3 apart from yui3-reset
Prev changes to .wp-post-image had badly affected archive layout

Moved styling to apply to img.attachment-full