Update git submodules
- Update extensions/SpamBlacklist from branch 'REL1_40' to b2cb3f8cfcca54ce7294164d39dc547c2b463f9a
- Localisation updates from https://translatewiki.net.
Change-Id: I6d3d4df2ca4d1a59cdb192655ce894d4e8134a7c
- Localisation updates from https://translatewiki.net.