Enable constants for centerleft and centertop
Add stopSFX() to ModuleXbmc to allow stopping of sounds started with playSFX()
[lang] update of internal addon language files
[lang] update of core language files
[lang] update of skin.confluence language files
Merge pull request #4445 from ruuk/stopsfx

Add xbmc.stopSFX() to the python xbmc module.
[gui] fix crash if an info expression (with square brackets) wasn't correctly closed off by a skin.
Merge pull request #4473 from Black09/constants

Enable constants for centerleft and centertop
[music] content type wasn't set in a bunch of cases. fixes #14915, fixes #15057
[addons] ensure we exit the lock prior to calling PrunePackageCache() as this takes ages, and will grab graphicscontext lock, leading to deadlocks