Undo/redo fully working

Normand Briere

2019-06-11 1d909ffa0c2beb51d453b53b845c4f3a749ca5f0

 timeflow/vis/VisualAct.java
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@@ -12,7 +12,6 @@
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 public class VisualAct implements Comparable
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 {
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-
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         Color color;
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         String label;
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         String mouseOver;