Test if g++ support openmp or not.

EPD on windows don't have openmp files.

testing infer_shape: op DownSampleFactorMax and DownsampleFactorMaxGrad

Don't test mixing complex output sum with scalar input since the gradient will have to do a complex->scalar cast and it is not well-defined.

-Add missing infer_shape and tests about it to Shape_i and MakeVector.
-Add missing infer_shape to the Assert class.

addition of time-profiling mode to unittest processing apparatus

theano-nose --profile

Make #include of omp.h compile-time conditional.

Pep8

infer_shape for random ops

including and testing suggestion to use 'borrow=true' flag when shared v...

including and testing suggestion to use 'borrow=true' flag when shared variable constructor exceeds available memory

Add infer_shape test for elemwise, dimshuffle and carreduce op.