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

[Debian testing autoremoval watch]

ruby-ridley 4.2.0-1 is marked for autoremoval from testing on 2016-02-26

It (build-)depends on packages with these RC bugs:
810892: ruby-celluloid: ruby-eye: FTBFS: Could not find 'timers' (~> 4.0.0) - did find: [timers-4.1.1] (Gem::LoadError)
811217: ruby-celluloid: diaspora: Configure error, Could not find gem 'timers (~> 4.0.0) ruby'
811261: ruby-celluloid: ruby-sidekiq: FTBFS: `to_specs': Could not find 'timers' (~> 4.0.0) - did find: [timers-4.1.1] (Gem::LoadError)