Update git submodules
- Update extensions/SyntaxHighlight_GeSHi from branch 'REL1_40' to 7c7786dbd59dc88dd0a77e07758b3716cf83e432
- Localisation updates from https://translatewiki.net.
Change-Id: I7df9ba79166513acb846c2e2e4670fe7548609a7
- Localisation updates from https://translatewiki.net.