added ShortestPathDijkstra::discoveryOrder()
added key_begin() and key_end() to iterate over the keys of a std::map (similar to Python's iterkeys)
added 'const' to MultiArrayView::view()
removed obsolete FIXME
added skeleton experiments
delegate: added license and URL
added VIGRA_FINALLY() and test
added get<N>(iter) for CoupledScanOrderIterator
added intial version of skeletonizeInterpixel()
added test image 'blatt.xv'
improved ShortestPathDijkstra::run() with ROI and added more tests
removed obsolete code from eccentricitytransform.hxx and adapted its tests to latest changes in ShortestPathDijkstra
changed argument order in ShortestPathDijkstra::run() with ROI
fixed skeleton detection bug and improved skeleton thinning
first acceptable skeleton version
refactored skeletonize() and added tests
disabled VIGRA_FINALLY() tests for now