[DRE-maint] ruby-celluloid-fsm is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-celluloid-fsm 0.20.0-2 is marked for autoremoval from testing on 2016-02-12

It is affected by these RC bugs:
810958: ruby-celluloid-fsm: FTBFS: `to_specs': Could not find 'timers' (~> 4.0.0) - did find: [timers-4.1.1] (Gem::LoadError)