Finished first version of full Tucker 4D decomposition and reconstruction
Removed the (unimplemented) tensor4_iterator.hpp file
Eliminated missing reference in CMakeLists
Added several missing files
Merge pull request #54 from Eyescale/master

Cleanups
Merge branch 'master' of https://github.com/VMML/vmmlib
Merge pull request #55 from rballester/master

4D tensor decomposition
Fix OS X build, remove dangerous -1 on unsigned