Added "retriveanswer" function, and capacity to include answers to previously asked questions within question text using format {INSERTANS:SIDXGIDXQID}. This functionality is purely test at the moment and will probably be refined significantly later - sid and gid are probably redundant.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/trunk/unstable@987 b72ed6b6-b9f8-46b5-92b4-906544132732