kernel_codegen.py do not contain long lines.

GpuConvTransp3D.py has been fixed.

GpuConvTransp3D.py do not contain long lines.

GpuConvGrad3D.py has been fixed

GpuConvGrad3D.py do not contain long lines.

elemwise.py do not contain long lines.

blas.py do not contain long lines.

Change the grad of abs to prevent relu from generating nan in fast_compile

Remove upcast to float64 in the graph.

Disable test values in BNComposite and get_substream_rstates

Develop SearchsortedOp to wrap numpy's searchsorted function

- Add extra tests for searchsorted

multinomial newbackend

- Resolve :215 of test_extra_ops to int explicitly
Reason: numpy.uint64 + int -> numpy.float64 for some reason (numpy/numpy@3509704)

- Fix tests and grad
- Add more documentation
- Fix doc Raises ValueError in `as_tensor_variable`
- Remove 'DebugMode' from tests

- Make sure perform outputs an numpy.ndarray.
- Add C implementation of searchsorted
- Fix PEP8 format
- Fix props, make_node, perform of SearchsortedOp
- Add searchsorted method (wrapper) on tensor variable
- Fix c_code and grad in SearchsortedOp, fix tests
- Update documentation

Fix test problem uncovered by test clean up (we where changed c_thunk=True globally, as we didn't do a deepcopy).

Norm

Function copy

Replace subtensors on broadcastable dimensions with DimShuffle

Make stack trace tests in `tensor/tests/test_opt.py` use `check_stack_trace`.