made drag and drop more consistanat

now picks up the card/stack so that its in hand (cursor) and can be
placed from there. (nothing fancy)
Merge branch 'master' of https://github.com/kellyelton/OCTGN
Merge branch 'master' of https://github.com/kellyelton/OCTGN
Merge branch 'master' of https://github.com/kellyelton/OCTGN
Merge branch 'master' of https://github.com/kellyelton/OCTGN
Merge pull request #635 from Soul1355/master

made drag and drop more consistant