PRICE - image filtering and manipulation Code

update Gorm file

fix typo

work for RGB curves - point setting not yet done

weight the pixel to normalized distance

also define external gauss(,)

fix bilinear scaling, when pixel distance is superior to 1px, it was wrong to keep it fix of 1px, instead it is the ratio of scaling

fix uninitialized size for GNUstep

make gaussian an inline function instead of a macro and thus check for special 0, 0 case

bump version

Remove alpha before saving JPEGs, may cause problems