Update git submodules
- Update extensions/TitleBlacklist from branch 'REL1_39' to e9ec974f3f57b6dfb29556faec353bea9dabde2a
- Localisation updates from https://translatewiki.net.
Change-Id: Ie19bee6b07fdbb988ab552a69f1b5fa7325cd885
- Localisation updates from https://translatewiki.net.