Switched the default strictness value of shared() back to strict=False.

Reason being there is a problem with the way we deal with strict. Strictness requires that a value has exactly the right type, but non-strictness implies just about any kind of casting including in-exact casting. What I would like the default to be is something that means casting is ok as long as it is exact.

Switched the default strictness value of shared() back to strict=False.
ee786d56 · James Bergstra · 2dccbe6e · ee786d56
--- a/theano/compile/sandbox/sharedvalue.py
+++ b/theano/compile/sandbox/sharedvalue.py
@@ -116,7 +116,7 @@ def shared_constructor(ctor):
    shared.constructors.append(ctor)
    return ctor

-def shared(value, name=None, strict=True, **kwargs):
+def shared(value, name=None, strict=False, **kwargs):
    """Return a SharedVariable Variable, initialized with a copy or reference of `value`.

    This function iterates over constructor functions (see `shared_constructor`) to find a