Merge pull request #38 from Eye-Static/andy

Finally, finally fixed dragging from board to tray (and all related bugs)
Merge pull request #39 from Eye-Static/andy

partially fix tile drop through problem
perpendicular multiwords
Merge branch 'master' into zach
Merge pull request #40 from Eye-Static/zach

Zach
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"fix" drag to tray bug in very hacky way
Merge branch 'master' into andy
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