MAME Languages.ini v0.157 is released. It supports file for MameUI, which attempts to catalog all of the MAME sets based on the language used by the game.

MAME Languages.ini v0.155 Changelog:
* 0.39 0.156 29/11/2014: Added 0.157 sets.

Download: MAME Languages.ini v0.157
Source: Here