Changed graph traversal routines in scan_utils.py to not visit any subgraph more than once
Improved comment on the new visited set in scan_utils.py traversal routines.
Fixed crash for unimplemented elemwise gradient

This bug was reported by Michael McNeil Forbes on the mailing-list.
PEP8
removing a bug
add unit test
Fix bug when unpickling previous versions of CAReduce
Made size argument mandatory in normal(..)

Having it default to None suggests it is optional, which is not true (it
will crash when using None).
Add matrix_of_scalars function
matrix_of_scalars -> tensor_of_scalars
generalize tensor_of_scalars to stacklists
Merge pull request #1335 from mrocklin/matrix_of_scalars

Add matrix_of_scalars function
Merge pull request #1333 from delallea/minor

Fixed import error with some numpy version(s)
windows port

dynamic linking to avoid FLS index overrun; "||" instead of "or"
updated code cache version
Fix check for 0 in values
Merge pull request #1336 from bbudescu/master

windows port
Merge pull request #1334 from delallea/minor2

Made size argument mandatory in normal(..)
Call parent __setstate__, so self.ufunc is correctly set.

Thanks @delallea for finding it.
Merge pull request #1 from lamblin/fix_elemwise_perform

Fix check for 0 in values