Added info functions for network, weights, nodes that do not save
weight and node values
Removed obsolete parameters in mint_network_camera
Removed mint_weights_mult_sparse, which simplified a number of
things in save/loading matrices and calling the appropriate
weights_mult function
Modified network_graph to display number of nonzero entries in
weight matrices
Better behavior for weights_init_normalize, especially with sparse
matrices: if no nonzero entries in a row, the row is created and
normalized
Added 2d coordinate functions to nodes - as yet untested :)
Removed mult_sparse from threads.c
Nothing of much relevance
Untracked a bunch of uninteresting files
Modified network_load to allow mixing of weights and nodes
definitions (the loading order is currently not preserved,
however, and saving will save nodes before weights)