Completely reworked. Now contains 4 major functions - "retrieveAnswer…

…s" which returns answer texts and input names, "mandatory_popup" which determines if the popup message about mandatory questions should show, "create_mandatorylist" which creates an array list of all mandatory questions being displayed and "retrieveConditionInfo" which returns an array containing information about any conditions for questions about to be displayed. Subsequent modifications made to question.php, group.php and survey.php to call the script just once, and call the functions within it as they iterate through display questions.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/trunk/unstable@979 b72ed6b6-b9f8-46b5-92b4-906544132732