Mostly PEP8 in conv2d
conv2d tests
make_random_conv2D test
Use floatX for conv2d tests and add test for different numbers of input/output channels in conv2d
add test_cifar100.py
conv2d tests different error type for bad filters
Test for conv2d's lmul_T and lmul_sq_T methods
Added format checking for docstrings.
Fixed assertRaises syntax for Python 2.6
fix missing space
6 new cost related functions for ConvRectifiedLinear
Changed relative paths to absolute paths. Made docstrings well formated.
Merge branch 'master' into test_cifar100

keeping test_cifar100 branch up to date.
more tests
test isnan, isinf
debug
debug
debug
mnist_rotated tests
fixing MNIST_rotated_background datapaths