Issue88

Fixed #88 : Artifacts in overexposed areas.

In Rendering.java, INTERP_BICUBIC (or INTERP_BICUBIC_2) in pure Java mode JAI cause the color artifacts. We should use INTERP_BILINEAR there.

EDIT: I noticed that even the INTERP_BILINEAR caused artifact in another color on Windows, so I switched to INTERP_NEAREST.