Interface change: Make theano.tensor.signal.conv2d(2d,2d) output 2d answer.

Doc typed list and better sparse doc.

Fix tests in buildbot and memory leak with allow_gc=False

Added Length Op to typed list.

Add fill_diagonal_offset()

Matrix_power

Power

Forgot to execute a test.It seems that theano.tensor can not be imported from the top of the file. However, functions that I need are in basic.py therefore there's no need to import theano.tensor or anything else.

1.fix typo\n2.move import to the top\n3.replace (1-pos_offset_flag) with neg_offset_flag\n4.replace grad.shape[1] with a.shape[1]\n5.remove axis_grad\n Waited to be done rewrite test_extro_ops]

The -ccbin argument to nvcc has to be a direct argument to nvcc