Needed to fix some manufacturers madness
Scalepixels: new IOP

Needed to fix NIKON D1X non-square pixels madness
iop_dependencies.py: add scalepixels
Run iop_dependencies.py after merge!
Flip IOP: modify_roi_in(): drop sanity check

Causes garbage when used with scalepixels.
If it is really needed, it should be rewriten in a way, that has no side-effects like that.
Merge pull request #669 from LebedevRI/fix-nikon-d1x-madness

Fix nikon d1x madness