Fixed issue 04629: Text for long answers does not wrap in PDF output of statistics
Dev Thank you to Machaven for the great base work. Because there is no getStringHeight in our TCPD version yet I changed the MultiCell function to return the real cell height instead so alternatic columns look proper.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/source/limesurvey@9271 b72ed6b6-b9f8-46b5-92b4-906544132732