Fixed issue with pow grad function trying to evalutate log at 0. Issue 1780
Added unit test.
Note: issue still occurs in debugmode.
Fixed error message for scan op dimension mismatch
Add optimization to move mrg_uniform to the GPU.
fixed a bug in tensor/opt.py exception
Fix the GPUA version of MRG to use the same rstate shape as the CPU one.
Add an optimization to move mrg_uniform to the GPU.

While there fix the inplace optimization so that it actually works with the GPU versions.
Fix a typo in Kernel that hasn't caused problems (yet) because 'None' is a valie C identifier.
Merge pull request #1844 from Hengjean/optExceptionBugFix

fixed a bug in tensor/opt.py exception
Merge pull request #1845 from abergeron/gpua_rng_opt

Gpua rng opt
make space for cuda 6.0 timming.
Allow the buildbot to pass extra parameter
Add GPU blas timming.
initial commit
remove extra space
fix indentation
fix name in error message
added ptp() and associated case test
formatted to pep8 and added doc
pep8 test_linalg.py
change the easy stuff