normalize functions

normalization of cased languages

Forked for Princeton - transliterating only Latin characters

Regenerate gemspec for version 2.5.2

Regenerate gemspec for version 2.5.1

Regenerate gemspec for version 2.5.0

Regenerate gemspec for version 2.4.2

Regenerate gemspec for version 2.4.1

Regenerate gemspec for version 2.4.0

Regenerate gemspec for version 2.3.0