enemy targets highlight when player attacks, and are clickable to send the attack message
cards now go back to black when inactive
minor refactor in GameClientController and ClientDocument.fxml
Enchant targeting MIGHT be working, and fixed a bug related to targeting opponent
refactored ZoneView classes, preparing to deal with UpdateMessage for cards
Merge branch 'client-server' into javafx
enchant and attack targeting should be working, colors fixed to match legend
Merge branch 'javafx' of github.com:Cardshifter/Cardshifter into client-server