Replace Xerxes with Artaxerxes

Xerxes is not passing OpentypeSanitizer check per
https://bugzilla.mozilla.org/show_bug.cgi?id=964696 that is why it won't work
as web font on Chrome and Firefox. This is its derivation to fix the issue.

Change-Id: I619e0c3ecb882ee91d46b36bf65a143bd8647d2f
Merge "Replace Xerxes with Artaxerxes"