Timeflow clean-up.

Normand Briere

2018-12-17 86f4e9c75951153ae9825f4772633e45698cb602

 timeflow/model/Display.java
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@@ -360,7 +360,7 @@
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                 return lines;
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         }
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-        public boolean emptyMessage(Graphics g, TFModel model)
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+        public boolean emptyMessage(Graphics g, TimeflowModel model)
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         {
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                 if (model.getActs() == null || model.getActs().size() == 0)
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                 {