eval_str handles date(time)s well
bcolz selection defaults to python on AttributeError
Fixing file merge conflicts.
into: Iterator <- bcolz
python: datetime selection
bcolz selection python branch uses into rather than iter

This coerces types properly
deal with into conflicts and bcolz
fix eval_str doctest
separate selection functions for carray, ctable
rename test_dynd to test_dynd_compute
add partition code
Merge remote-tracking branch 'mrocklin/h5py-compute' into partitions
flatten function
add h5py to known arrays in parition.py
Merge branch 'master' of github.com:ContinuumIO/blaze into partitions
Merge branch 'partitions' of github.com:mrocklin/blaze into partitions
use shape as function rather than as method
add missing toolz.concat import
split on reductions pass axis argument
top_to_bottom passes on notimplemented compute_down