Change version 1.1 to 1.10 - decimal comparison?

git-svn-id: https://plugins.svn.wordpress.org/qwiz-online-quizzes-and-flashcards/trunk@989813 b8457f37-d9ea-0310-8a92-e5e31aec5664
Try version 1.11

git-svn-id: https://plugins.svn.wordpress.org/qwiz-online-quizzes-and-flashcards/trunk@989816 b8457f37-d9ea-0310-8a92-e5e31aec5664