Merge pull request #1094 from karlnapf/develop

a bunch of equals fixes
Merge pull request #1095 from karlnapf/develop

added another num_elements check and changed print to debug print
WIP - First changes in CCombinedKernel
Merge pull request #1093 from van51/develop

Convert from CList to CDynamicObjectArray in CCombinedKernel class (Closes: #1061)
fix add/del_preprocessor of director dot features to use new API
ADD kernelPCA_unittest.cc
  > Test embedding result of initial feature
Merge pull request #1098 from itsuper7/develop-unit-1

add kernelPCA_unittest.cc
temporarily disable KPCA test and fix compiler warnings
Added new interactive kmm demo
example ML2 parameter selection for GP Regression
example ML2 parameter selection for GP Regression
file shifted to grahical
Merge pull request #1100 from abinashpanda/develop

example ML2 parameter selection for GP Regression
Conversion from CList to CDynamicObjectArray in CCombinedFeatures
Merge pull request #1101 from van51/feature/comb_feat

Conversion from CList to CDynamicObjectArray in CCombinedFeatures
Added an implementation of manifold sculpting DR method (see http://axon.cs.byu.edu/papers/gashler2011smc.pdf);
Added a method in tapkee library for converting FeatureCallback into a DenseMatrix (it was used previously a
few times); refactored a little; added all the stuff needed for the new method to be 'visible' from outside the tapkee.
Fixed issues and refactored according to the comments in PR (https://github.com/shogun-toolbox/shogun/pull/1086).
Added a wrapper for a manifold sculpting DR method implemented in tapkee; added a modular wrapper for the wrapper:); fixed some bugs in the algorithm itself.
Merge pull request #1105 from vladislav-horbatiuk/vgorbati-develop

Added full implementation of manifold sculpting DR method and a smoke test for it.
Merge pull request #1099 from goldbug/develop-kmm-example

Added new interactive kmm demo (issue #885)