[db] makes drag information into a dictionary - snaps now cause blocks
to drag too
[db] adds connection link to snaps
[db] snaps print altitude connections
[db] snaps can now be dragged to the right
[db] cleaned up getLeftSpacer and getRightSpacer for snaps
[db] cleans up the snap dropping code a bit, now dragging to the left
too. Buggy
[db] more code cleanup - should not be any change in functionality
[db] seems to fix snaps not always dragging. fixes #13