doc cleanup, and removed argument that has been deprecated for over 6
months
remove deprecated functionality
remove unused imports and commented code
fix mispelling in comment
add removal date to deprecation warning
remove deprecated functionality
doc
Add time limit to DBM.mcmc_steps deprecation warning
Merge pull request #542 from vdumoulin/dbm_docfix

Add time limit to DBM.mcmc_steps deprecation warning
merged in master
cleaned up the merge with master
pep8 cleanup. datasets/dataset.py, datasets/dense_design_matrix.py and utils/__init__.py are now pep8-clean.
commit before switching branches
Coded up tests, need to pylint and run them.
commit before exploring earlier commits for the origin of the weird pylint error in utils/__init__.py
Committing before maybe changing *format_as() methods to support converting to/from sparse and non-sparse. This will also require changes to how those functions call np_validate() to sanity-check the input batch.
commit before switching branches
commit before attempting to implement a reshape() for SparseVariable
Commit before attempting to support VectorSpace.format_as(sparse_variable, composite_space).
minor fix