Merge pull request #34 from ShaikDawood/master

updating selection for practice and selectQuest.html
Merge pull request #35 from ShaikDawood/master

solved selection bug
Merge pull request #5 from ChrisBoesch/master

updated
solved the problem of dragging to the bottom can not be processed without going through others
Merge pull request #36 from LI-HE/master

solved the problem of dragging to the bottom can not be processed without going through others
Merge pull request #11 from ChrisBoesch/master

updating my repo..