asy: The cylinder and triangles tests introduced in the 20160523
release gave various problems on systems running gcc-6.  I attempted
a workaround in the 20160624 release, but reverted the changes to
triangles in the 20160817 release and instead noted that the title
will be on a separate page if the 2016 binary is used on a gcc-6
system.

bibxelatex: test was broken if no korean font had been installed.
Applies to all releases starting from 20160523.  Fixed in the
20160905 release.

