Update git submodules
- Update extensions/SyntaxHighlight_GeSHi from branch 'REL1_39' to 730d5dbed2a3cb1593894ae72847a5ec2ddcb378
- Localisation updates from https://translatewiki.net.
Change-Id: I6c18d0323268df4b4f4407b0e7c16189380c3fdb
- Localisation updates from https://translatewiki.net.