Can move nodes between parents on parse tree.
Parse tree is zoomable in a window, some styling for the surrounding window,
and work towards sufficient spacing horizontally between sibling nodes.
Merge branch 'master' of github.com:OpenPhilology/phaidra
Fixed horizontal spacing between nodes. Now they space themselves out based on word
length, so all the long greek words don't collide if they're next to each other.
Merge branch 'master' of github.com:OpenPhilology/phaidra