Revision history for ISO-639-5

0.01    Wed Jun 24 21:38:09 EEST 2020
        First version, released on an unsuspecting world.

0.02	Sun Jun 28 23:16:20 EEST 2020
	- added function language_group_children (immediate children in language group hierarchy)
	- redefined function language_group (returns all languages and not immediate children only)

0.04	Tue Jan 19 23:43:56 EET 2021
	- added missing language groups
	- fixed ISO639-5 hierarchy

0.05	Wed Feb 10 15:46:45 EET 2021
	- removed glottolog IDs in cai
	- added language lists via glottolog IDs
	- added conversion to Glottolog IDs