Changed database column references from numeric to associative.
Added natural sort to questions.
Discovered bug in natural sort (to be fixed later). Questions from all groups are sorted together.
Cleaned up HTML.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/trunk/unstable@66 b72ed6b6-b9f8-46b5-92b4-906544132732