updated issues.txt
fixed issue 45 (thumbnail borders)
fixed issued 44 (html now allowed in collection descriptions)
Changes to home page styling, featured collection, and featured item.

Front page is not much more attractive in modern browsers. This was
achieved using css background images in place of the img tag. Users
without css support won't see these images, but can still follow the links
to the image and collection pages where they can see the images as always.

Also removed the cluttery "See all items" and "See all collections"
messages.
added TODO.txt and markup fix copied from forbeslibrary.org
homepage search box can now be hidden with a theme configuration
fixed bug in last commit: homepage search config options now consistent
changed name of theme to Forbes Library
Merge branch 'develop'