Add ISO-639-3 names file, remove ISO-639-2 names file
Add generation of ISO-639-3 codes, remove 639-2 support
Refactor API to return ISO-639-3 codes instead of 639-2
Update spec for b8bb1a6
Update Readme.md and benchmark for recent changes
Update changelog for 0.2.0-rc.2
0.2.0-rc.2