Upgrade documentation of Integral based estimators
Merge branch 'master' into Error838
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
concepts namespace for shapes concepts
Merge branch 'master' into Error838
maj line width of doc
Merge branch 'master' into Issue842
minor edit on ASSERT / BOOST_CHECK_CONCEPT
Renaming functors::RescalingFunctor into functors::Rescaling
moving estimators functors into functors:: namespace
Merge pull request #875 from kerautret/RenamingFunctor

Renaming functors::RescalingFunctor into functors::Rescaling
minor edit doc
Merge pull request #871 from dcoeurjo/shapeconcepts

concepts namespace for shapes concepts
Passing Matrix as template argument for IIGeometricfunctors and EigenDecomposition (with default SimpleMatrix)
Merge pull request #855 from jlevallois/Error838

Upgrade documentation of Integral based estimators
Merge pull request #856 from jlevallois/Issue842

Fixing issue with wrong order of principal curvatures with II estimators