Fix c code versioning of Conv3d op.

The Attribute Error is catched in cmodule_key
Add doc for isinf and isnan
typo in error msg.
make theano-cache cleanup remove from the cache module with old version of c code.
Fix profile printing destination.
make theano-cache cleanup clear compiledir module that are too old.
Use the normal variable name.
Fix GPU crash/too slow on Windows 64 bit for the convolution.

We where casting a 64 bit ptr to 32 bit.

This was done with much help from Aaron Defazio. fix gh-1547
add test for an optimization about scan sequences
Don't overflow in printing over 4G by using the good print size.
Fix crash during printing of the profiler of optimizer.
Use logger instead of printing. Update error message.
Merge pull request #24 from lamblin/nouiz_mixed2

Use logger instead of printing. Update error message.
Merge pull request #1552 from nouiz/mixed2

Mixed2