half way through crossterm objective
Merge branch 'devel' of github.com:SheffieldML/GPy into devel
updated crossterms, rbf x any not working yet (derivatives)
psistattests update
rename models to _models and import models in models.py
testing imports update and expected failure for crossterms
dim reduction imports
Merge branch 'devel' of github.com:SheffieldML/GPy into devel