[Interface change] be more consistent, use ndim instead of outdim

Remove goto in OpenMP Elemwise fail code

avoid creating float64 variables

The regular python2 and python2_debug buildbots used the same cache directory.

Stop the compilation when we found a negative shape.

Prevent gpu initialization when not required

Fix hard crash when dividing by 0

fix opt warning in the ifelse lifter

[Interface change] tensor.flatten() deprecate outdim and rename it to ndim to be more consistent with the rest of Theano include var.flatten() that use ndim.

Reported in: [theano-users] Error occurred while refactoring code

Updated numpy as np #4218

- use KERNEL macro
- do not use `%(fail)s` on GPU to avoid returning prematurely from
  kernel
- have special block for y == 0 (and reorder other ones)
- keep calling // 0 or % 0 on GPU, even though cuda will not fail

Disable compute_test_value during Theano optimization phase. This giv…

Setting gradient for MRG_RandomStreams distribution variables to be null

Update Windows (and other generic) installation instructions

Gpu cholesky