fixed conditions when to insert an Assert op; improved the way a variable is added temporarily to the fgraph so that shape_feature can use it; removed bitwise optimizations since they have been started in another PR already

Conflicts:
	theano/tensor/nnet/tests/test_nnet.py

Replace RepeatOp with Theano graph, using tensor.tile

Better same_shape implementation

[CRASH] Fix crash in connection_pattern when there are mitmots

Lazylinker c problem

Disable GpuAllocEmpty merge

Added support for negative axis in GpuCumsumOp

Added ability to store results from theano function in a python dictiona...

Merge test fixes