minor changes
added arbitrary-dimensional gaussianGradientMagnitude() and tests
finished dimension-independent slic superpixels
renamed multi_math::detail => multi_math::math_detail to prevent ambiguities after 'using namespace multi_math'
vigranumpy: fixed default edgeLabel in regionImageToEdgeImage()
added documentation and test for multi-dimensional gaussianGradientMagnitude()
minor watershed refactoring and docu fixes
refactored and documented slicSuperpixels()
Mac compatibility fixes
fixed reference to temporary
numpy 1.7 deprecation fixes
more numpy compatibility fixes