Gpu sum crash fix

fix race condition

Popen windows

Always define the name attribute to a default value.

This fix an error in error handling code. This will allow the real error to show up.

fix stacklevel of updates dictionary warning

fix Theano test.

A few small things.

Fix for new name of scipy.linalg.blas.fblas

There was a confusion by a user.

Also cleaned up duplicated / useless code at the same time.
This fixes gh-1144.

Update doc/tutorial/loop.txt

It is unclear that A was an argument to inner_fct, because it is masking a variable named A in the surrounding scope. This was VERY confusing when trying to understand this code.

Now raise an error if theano.shared() called with a Theano variable as d...

Fix two bugs reported by Nicolas

Conflicts:
	theano/scan_module/scan_op.py