Fix orientation on reduced images.

[jaketoolson]

From what I'm following in the code, the autoOrient() method is only called from resize method, and not reduce. It should be available for both - where would I add it in the reduce code?

I mention this because of orientation images relating to iOS and EXIF data - which is fixed with resizes, but not reduce.

[kdybicz]

It would be easier to follow this in README than code :) Reduce doesn't support orientation, so the only way atm to fix image orientation is through resize method.

[jaketoolson]

@kdybicz - I already realized this this, hence my question.