DummyProgress traceback upon launch

[ryanbugden]

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Installing 'Batch' report:
  Traceback (most recent call last):
      File "main.py", line 7, in <module>
      File "/Users/Ryan/Library/Application Support/RoboFont/plugins/Batch.roboFontExt/lib/batchCompileTools.py", line 1, in <module>
    ImportError: cannot import name 'DummyProgress' from 'batchGenerators.batchTools' (/Users/Ryan/Library/Application Support/RoboFont/plugins/Batch.roboFontExt/lib/batchGenerators/batchTools.py)
  
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