Sparse GP with EP is working now
Merge branch 'master' of github.com:SheffieldML/GPy into genFITC
Merge branch 'master' of github.com:SheffieldML/GPy into genFITC
some changes to product_orthogonal

dKdiag_dX is now implemented, some of the cod eis a little tidier
some small changes.
coregionalisation seems to be a go-go
all the product_orthogonal have been changed to prod_orthogonal for consistency
sometidying of the psi statistic  cross terms
Merge branch 'master' of github.com:SheffieldML/GPy
removed log_likelihood_gradients_transformed, now everything is done in the objective functions
Merge branch 'master' of github.com:SheffieldML/GPy
added tutorial in examples
Merge branch 'master' of github.com:SheffieldML/GPy
FIxed a transpose bug in sparse_GPLVM
added simple gplvm_tests
added sparse_gplvm_tests -- they fail
skipping a test known to fail (linear sparse)
Draft of documentation for implemented kernels
Draft of documentation for implemented kernels
Plot function moved to GP model