New features
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- Enhance :class:`surrogate.kriging`: adimentionize input parameters,
use anisotropic kernel and use genetic algorithm for parameters optimization
- Settings are now written in JSON and checked using a schema
- Ask for confirmation of output if exists: if no, ask for restarting from files
- Add post-treatment example scripts in ``test_cases/Post-treatment``
Enhancements
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- Save points of the DOE as human readable file
- Add branch and commit information to log
- Add doc for tutorial, space, surrogate and pod
- Change Scikit-Learn to stable 0.18
- Restart option ``-r`` now working properly
- Create a :mod:`misc` which contains logging and json schema
Bug fixes
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- Refiner navigator loops correctly
- LOOCV working for multimodes
- Revert Q2 variance to use ``eval_ref``
- Avoid extra POD quality when using LOOCV strategies
- Popping space was not working properly