EGO bug fixes

• fix EGO bugs (#192)

NestedLHS in MFK and predict derivatives fixes

• add NestedLHS sampling method in MFK application (#187, thanks to @Flo-code )
• fix Kriging based surrogates predict_derivatives when poly option is set to "linear" (#188)
• fix VFM predict_derivatives and performance improvement (#181)
• fix QP predict_values for multiple ouputs (ny>1) (#180, #181)

Fix release

• allow to pass initial DOE output (y) in EGO (#185)
• doc fixes (#179)

EGO application

• rename extensions as applications (backwards-incompatible)
• add Efficient Global Optimization algorithm as a SMT application
• fix KRG, QP and LP surrogates when output dim > 1
• improve test coverage
• add SMT tutorial

Bug fix release

• fix kriging predict_variances bug (#158 , #159 )

Bug fix release

• Kriging pickle fix (#154 )
• MOE improvement (#151 )
• Kriging initialization improvement (#150 )

fix packaging again

Add .pyx and .hpp to enable compilation when running pip install smt

packaging fix

fix packages list in setup.py

v0.3.0

• GENN surrogate model addition (#123, thanks @shb84)
• work with scikit-learn 0.20
• test against py37, osx 10.3

v0.2.2: fix installation: add extensions package (#117)

* add extensions as packages

* bump 0.2.2