* Don't request to load the GPU module by default in scan module. (Razvan)
* Fixed some import problems.
* Filtering update. (James)
* The buidbot now raises optimization errors instead of just printing a warning. (Frederic)
* On Windows, the default compiledir changed to be local to the computer/user and not transferred with roaming profile. (Sebastian Urban)
* New theano flag "on_shape_error". Default to "warn" (same as previous behavior): it print a warning when an error occur when infering the shape of some apply node. The other accepted value is "raise" to raise an error when this happen.
* The buidbot now raises optimization/shape errors instead of just printing a warning. (Frederic)