Add parameter 'inplace' to Gemm Op.
Alias gemm_inplace to Gemm(inplace=True) and gemm_no_inplace to
Gemm(inplace=False).
Replace calls to 'gemm' in GemmOptimizer by calls to gemm_no_inplace.

If True, won't print the intermediate var that don't have name.

instead created setsubtensor function. Also added python and rst documentation.

internal use.  I created a new Alloc() Op that is used for fill-lifting
Optimizations.

specialization.  It inserts a new op called PseudoGemm.  This Op has the same
signature as Gemm but does not work inplace.   Another optimization comes
later in the pipeline and swaps PseudoGemm for Gemm

An Env feature persists throughout the life of the env, so many optimizations
can take advantage of the Shape analysis done by ShapeFeature.

exact output from the rngs, the float32-casted sampling bounds mess things up.

print more column in the profiler. Added the number of apply in the op-wise summary. Added the number of op in the single op-wise summary

small fix to the not used Mean op. Now perform() work event when axis!=None and c_code() generate code only when axis==None(only type of code implemented for now.)

phase.

graphs.