refactored ndim -> n_inputs and outdim -> n_outputs
fixed typo
fixed n_inputs back to n_dim where we really wanted to have an array.
found some more outdims and changed them
changed documentation wording
fixed some of the wrongly changed ndims back
corrected one more overzealous refactor
corrected another overzealous refactor
Merge pull request #1067 from wkerzendorf/models/refactor_ndim_outdim

Renaming ndim and outdim in modelling