Update data submodule commit
Add bar chart to LMNN notebook for wine data section
Merge pull request #1675 from iglesias/develop

Update data submodule commit
Merge pull request #1673 from lambday/develop

renamed datatype complex64_t to complex128_t
Merge pull request #1674 from iglesias/feature/lmnn

Add bar chart to LMNN notebook for wine data section
add sparse matrix support for Protobuf file format
Merge pull request #1670 from gsomix/feature/protobuf

Add sparse matrix support for Protobuf file format
refactor GPs framework
Merge pull request #1676 from votjakovr/feature/gp_refactoring

refactor GPs framework
add arts/asp __init__.py such that it can be imported
fix issue #1611
cleanup svm_binary_classification.ipynb
Dump gmock version to 1.7.0
Fix typo in Serialization_unittest.cc
fix issue #1677: use mathjax in doxygen for displaying mathematical formulas
Add valgrind suppression file when running ctest memcheck
add strange leaking errors of libxml2 to the suppression file
add randomized unit-tests for IO, increase precision for ASCII writers
fix latex error in doxygen
Merge pull request #1679 from gsomix/feature/protobuf

Unit-tests for IO
Fix leaking classes related issue #1477
Revert changes in VwRegressor.cpp
fix a small memleak in SGObject.ref_unref unit test
Fix typo in tests/integration/python_modular/CMakeLists.txt
this should fix issue #1661