Version 0.5.8 (2012-05-02):
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* QgsMessageLog unsupported on older versions.

Version 0.5.7 (2012-05-01):
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* Internationalization support

Version 0.5.6 (2012-02-19):
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* Horizontal and vertical digitizer added.

Version 0.5.5 (2011-12-21):
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* Orthogonal digitizer: when closing the polygon it will move the last point instead the first one.
