start of fixed_var_descr support for sgd
more fixed_var_descr support
more fixed_var_descr support
Merge branch 'master' of github.com:lisa-lab/pylearn2
Merge branch 'master' of github.com:lisa-lab/pylearn2
correctly access on_load_batch
fixed wrong name of field access
Merge pull request #253 from goodfeli/master

make sgd support fixed_var_descr