am 4561ea57: am 04ed3fe8: am 32bd1410: am 4df667f4: Add devsite-compatible lang ids to whitelist and add a redirect for the old uppercase ids.

* commit '4561ea57ef9d075c04f00f765901a1d3de9e11b4':
  Add devsite-compatible lang ids to whitelist and add a redirect for the old uppercase ids.