stop criterion plus tests
added 'construct_custodian_for.hpp' (fixes boost::python problem)
fix wrong cast to unsigned int, should be size_t

Should fix crashes for ArrayVector.size() >= 2**32
fix ever-increasing buffer
upgraded int => ptrdiff_t in BasicImage and its relatives
Merge remote-tracking branch 'origin'
vigranumpy: add 'mode' parameter to VigraArray.writeImage()
improved VigraArray.show()
cmake: also look for libtiff_i.lib
removed incorrect include
python wrapper for totalVariationFilter
Merge branch 'master' of https://github.com/svenwanner/vigra
added portable isinf() and isnan()
Merge remote-tracking branch 'origin/merge_graph'
Merge branch 'master' of https://github.com/DerThorsten/vigra
fixed line endings in 'delegate'-related files
Merge remote-tracking branch 'thorben/fix_arrayvector_64bit'
improved configuration for std::unique_ptr and std::thread
improved configuration for WITH_BOOST_THREAD
cmake: added missing variable