Fixed bug that caused double results when exporting short answers. Bug was caused by use of mysql_fetch_array - added ', MYSQL_ASSOC' to only receive the associative names, not the numerical. Had to rearrange script slightly because long answers still require numerical array.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/trunk/unstable@64 b72ed6b6-b9f8-46b5-92b4-906544132732