[lmv_dimselect] we need to keep a pointer to the lvm_dimselect object, as the updates are weak references: dim_select = ...
[posteriot] adjusted for more then one covariance per output
[pca] colors now as iterator
[vardtc missing data] can handle non broadcastable selections
[datasets] delete packed data in hapmap dataset
[stationary] input_sensitiviy is now 1/(l**2)
[psi-stats] add kernel was missing a psi zero call
[core updates] first try to switch updates off and on. Use m.updates = False to switch updates off, and vice-versa
[mrd] more control for init, some missing data adjustements, init greatly improved