First step in using DD in constructors.  Ephemeral tests pass already.
All creation tests passes now
All the tests in array_opening are passing now
Initial commit of blaze datetime design doc
Add more to the doc, date attributes, some starting datetime notes
Add more background to datetime design doc
Adopt the ICU library "universal time scale" for datetime storage
Add some information about what's available from the OS
Start adding datetime code examples that should work
Making the tests in datadescriptor to run
Added support for creating HDF5 files in Blaze constructors
Uniformizing API for DataDescriptors
Storage is not needed anymore, and the same goes for from_* openers
An explicit dshape is always honored in blaze.array constructor
Removed a stale Storage import
*DataDescriptor classes shortened to *_DDesc
`dd` parameter in constructors has changed to `ddesc`
`dd_as_py` function has been renamed to `ddesc_as_py`
Array._data went public and renamed to Array.ddesc
Storage replaced by DDesc in compute/eval