Update rubocop to version 0.34.0

Gemfile.lock

@@ -174,7 +174,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 3.0)
       netrc (~> 0.7)
-    rubocop (0.33.0)
+    rubocop (0.34.0)
       astrolabe (~> 1.3)
       parser (>= 2.2.2.5, < 3.0)
       powerpack (~> 0.1)

config/unicorn.rb

@@ -2,17 +2,15 @@ worker_processes 3
 timeout 30
 preload_app true
 
-before_fork do |server, worker|
+before_fork do
   Signal.trap 'TERM' do
-    puts 'Unicorn master intercepting TERM and sending myself QUIT instead'
     Process.kill 'QUIT', Process.pid
   end
   ActiveRecord::Base.connection.disconnect!
 end
 
-after_fork do |server, worker|
+after_fork do
   Signal.trap 'TERM' do
-    puts 'Unicorn worker intercepting TERM and doing nothing. Wait for master to sent QUIT'
   end
   ActiveRecord::Base.establish_connection
 end