Always stop propagation and prevent default
Support dragging and dropping between windows
:lipstick: Use dataTransfer variable
Outdent double click spec
Move dropped item to correct index after opening
Don't clobber variables send back over ipc
Check that event is from correct pane
:memo: Add a few comments
:lipstick: Rename el/elt to element
Add missing the
Check ids before sending channel event
Properly check ids before routing
Transfer unsaved text when dragged across windows
DRY up toIndex/toPane variables
Remove logging
Use clearDropTarget from onDragEnd
Put pane id in drag event

This allows the correct pane to be closed when a split
pane is dropped onto another window.
Merge pull request #45 from atom/ks-dnd-across-windows

Drag and drop across windows