multiclass heuristics for probabilistic outputs estimations
added unit-test
dropped SGVector reference
Issue #1042 - Cross-Product for lists of kernels
Updated tapkee library

- Proper non-negativity checks in parameters
- VP-tree neighbors method
- Some minor fixes
Fixed include in vptree
fixed memory access issue in MCLDA.cpp
Merge pull request #1063 from pickle27/lda_multiclass

fixed memory access issue in MCLDA.cpp
Merge pull request #1017 from hushell/issues

[update] Probabilistic Outputs for SVM
Merge pull request #1062 from votjakovr/develop

Replaced dynamic_cast with obtain_from_generic in FITCInferenceMethod class
Merge pull request #1059 from van51/develop

Issue #1042 - Cross-Product for lists of kernels