Add support for AlternateNamesV2 (and other new files?)

[RobThree]

Apparently a few new files have been introduced. We'll need to add support for those.

[RobThree]

Support for AlternateNamesV2 was added in v1.5.1 (see #7 )

Thanks @rodoch! Good work!

[RobThree]

Whoops, didn't mean to close. We still need to assess what other files and if/how to add support.