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
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
All tests in blaze/tests passes now
All the tests in blaze/datadescriptor pass now
elwise tests passes now
All tests pass now
When building a Blaze array, a dynd container is in rw access mode by default
All the basic samples run now