mod_unified_push: Remove dependency on trunk util.jwt (0.12 compat) This should allow the module to work on 0.12, while preserving expiry checking (which was not built in to 0.12's util.jwt).

-- this module is deprecated, log an error and load the superseding module instead
module:depends"smacks"

module:log("error", "mod_smacks_offline is deprecated! Just use mod_smacks!");