Update git submodules
- Update extensions/LocalisationUpdate from branch 'REL1_31' to bdf7b30dbada29938bd92ee6b9370a45d0ecac61
- Handle exceptions from GitHubFetcher
If a l10n directory is not found, log a message but continue.
This commit introduces some output to normal update.php run, which can be disabled with the --quiet switch.
Bug: T176390 Change-Id: Ic1001303aef859d325e307edd4348364cab9ed7d (cherry picked from commit db84ba6ed2b4e255c844171db545fa451da08e1f)
- Handle exceptions from GitHubFetcher