Fix issue 04302: Navigating between pages may change already saved answers
Dev Removed extra spaces from "No answer" option value in drop-down lists
Dev Drop-downs no longer default to the first option when returning to a group after selecting "No answer"

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/source/limesurvey@8676 b72ed6b6-b9f8-46b5-92b4-906544132732