Japanese: Update Japanese translation.

 Add missing entries.
 A little revised.
 Fix build failure (patch-2)
 Rebase and add more missing entries (patch-3)
 Applied Taichi's suggestion, thanks. (patch-4,5)
 Update for Quick launch shortcut (patch-6)

Change-Id: I33ac7aa808db6a7c78b201b6a0e304b09a987c22