add isreal predicate
Merge branch 'master' of github.com:ContinuumIO/datashape
Update docstring for DataShape

cc @chrish42

Regarding https://github.com/ContinuumIO/blaze/issues/807
Informative error message around DataShape(str)

In [1]: from datashape import DataShape, dshape

In [2]: DataShape("5 * int")
TypeError: DataShape constructor for internal use.
Use dshape function to convert strings into datashapes.
Try:
    dshape('5 * int')

In [3]: dshape('5 * int')
Out[3]: dshape("5 * int32")

cc @chrish42

Refer https://github.com/ContinuumIO/blaze/issues/807
bump version to 0.4.1
add win-64 to binstar
test raises -> pytest.raises
add test to conda.yaml
add dateutil to conda.yaml
rename requirements to _requirements
remove install_requires from setup.py
add install requires back in to setup.py
Make Record.to_numpy_dtype robust to unicode names
move conda.yaml to conda.recipe
binstar.yml points to conda.recipe/
rename conda.yaml to meta.yaml
Update meta.yaml

@mrocklin I removed the `source` tag fronm conda so that it builds form the correct branch.
Update bld.bat
Delete build.sh
Update meta.yaml