SUSE-RU-2016:0031-1 Recommended update for libXfont

This update for libXfont fixes the following issues: - The original fix for CVE-2015-1804 prevented DWIDTH to be negative. However, the spec states that 'DWIDTH ... is a vector indicating the position of the next glyph's origin relative to the origin of this glyph'. Consequently, negative DWIDTH...