weaved some rbf code
improved weaving
OMP for psi2 computations in RBF
pdinv now uses dpotri instead of dtrtri and dot
Merge branch 'devel' of github.com:SheffieldML/GPy into devel
Merge branch 'master' into devel
merged master back into devel (to sync bugfixes)
some minor improvements in visualize
mrd example added