Update VE core submodule to master (a1c190c)

New changes:
27ae4bd Localisation updates from https://translatewiki.net.
f41633d Revert "ve.ce.Surface: Magic workaround for broken Firefox cursoring"

Change-Id: I544f906fa8166c6abff647611e6ce91e7058008f
Merge "Update VE core submodule to master (a1c190c)"