Fix doc generation.

Renamed "copy_inputs" into "share_inputs" in clone

GpuArray join/split

GpuArray Rebroadcast c code.

[BUG] Fix bad view map in real(float32)

Old argument "copy_inputs" still works but will show a deprecation
warning.

The reason is that "copy_inputs" suggests that inputs are copied, while
actually they are not.

A test is failing in debugmode:
THEANO_FLAGS=mode=DebugMode theano-nose -s --pdb --pdb-failure theano/tensor/tests/test_complex.py:TestRealImag.test_on_real_input

Following a change in pygpu to raise a ValueError instead of a GpuArrayException on GA_VALUE_ERROR we can remove workaround code.

Follow the rename of libgpuarray.

gh-1816 PR with small fixes

Remove import of device_properties at the top of the file, as this break import of Theano when there is no GPU available.

This is needed for the new gpu op tests to pass.

Corrected check for whether cuda is active or not and compile only one addition kernel instead of many in the perform() method.

Mostly adapted Op and tests to new backend. TODO: Remove faulty python implementation from _dev20 version of op

Copied GpuAdvancedIncSubtensor1() and GpuAdvancedIncSubtensor1_dev() ops and their tests to sandbox/gpuarray

Fast rng mrg