#21 Reload raster and EPS images

[Bernhard Herzog]

Sketch should be able to reload images and EPS files
stored on disk when the files change. This could be
done either automatically or on user request.

This came up on the mailing list in the thread starting
with this posting by Jan Sieber:
http://www.geocrawler.com/lists/3/SourceForge/5016/0/7606939/