use boost::filesystem v3
Merge branch 'master' into filesystem_v3

Conflicts:
	lib/ImageIO/imageFormat_compressed.cpp
Merge remote-tracking branch 'origin/master' into filesystem_v3
fix bug in valueIteratorStresstest.cpp
Merge branch 'filesystem_v3'

Conflicts:
	lib/Core/DataStorage/io_factory.cpp
Merge branch 'master' into iterator_swap