Merged r5281 from trunk.
r5256 in trunk and r5271 in 1.1-stable fixed #7794 completely. r5253 (r5183) in trunk and r5184 effect the width of the ASCII character of Japanese PDF.
Contributed by Jun NAITOH.
Authored by: tmaruyama 2011-04-01
Parent: [r5281]
Child: [r5283]