Fixing issue with wrong order of principal curvatures with II estimators + adding some tests to check this. Adding some functors in IIGeometricFunctors.
removing extra *******
fixing unused parameter
fixing unused parameter
minor edit changelog
Merge branch 'master' into Issue842
minor edit on ASSERT / BOOST_CHECK_CONCEPT
moving estimators functors into functors:: namespace
Passing Matrix as template argument for IIGeometricfunctors and EigenDecomposition (with default SimpleMatrix)
Merge pull request #856 from jlevallois/Issue842

Fixing issue with wrong order of principal curvatures with II estimators