New feature: spread sheet type row and colum totals for Array Multi text (numbers only)
Dev if option is set, an addtional column/row input field is inserted for the column/row total. Javascript then calculates the column/row total and inserts the value into the field
Dev total values are not saved to db
Dev Grand total option is also available for the total of either column or row

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/source/limesurvey_dev@8912 b72ed6b6-b9f8-46b5-92b4-906544132732