Fixed small markup issues
Changed todo tags to divs, p's no longer wrapping ul's, some br now p's
added longdesc on app types figure
Moved some todo to where they apply. Added a few todos for undefined things so empty dd's don't get trimmed.
Fixed validation issues
fixed merge issue
TBW -> TBD
Merge pull request #54 from marcoscaceres/markup_issues

Fixes markup issues