v0.6.7

• add Grabit model / Tobit objective function
• support calculation of approximate standard deviations of fixed effects coefficients in GLMMs
• [R package] added function for creating partial dependence plots (gpb.plot.partial.dependence)
• [R package] use R’s internal .Call function, correct function registration, use R’s internal error function, use R standard routines to access data in C++, move more finalizer logic into C++ side, fix PROTECT/UNPROTECT issues, limit exported symbols in DLL,
• [Python package] Fix bug in scikit-learn wrapper for classification
• change in initialization and checking of convergence criterion for mode finding algorithm for Laplace approximation for non Gaussian data