Fix XeLaTeX option consistent with XeTeX option

Fix XeLaTeX option consistent with XeTeX option

In LilyPond, XeTeX uses option
`--output-driver='xdvipdfmx -C 0x0010'`
but XeLaTeX did not use any options.

This commit makes XeLaTeX uses the same option
for consistent with XeTeX.

[lemzwerg, 2016-10-23 16:08:15]

LGTM

[trueroad, 2016-11-01 11:39:30]

I've pushed.
commit 5a51d882b01ad555ffe7659e7f7a73144ad2fc9d