Remove "nohup" from rake task to address 9z0b3t1c#101

The interaction between this gem and capistrano-rbenv causes problems in this configuration. Removing "nohup" is a workaround. See 9z0b3t1c#101 for why this is so.

lib/capistrano-resque/tasks/capistrano-resque.rake

@@ -70,7 +70,7 @@ namespace :resque do
           number_of_workers.times do
             pid = "#{fetch(:resque_pid_path)}/resque_work_#{worker_id}.pid"
             within current_path do
-              execute :nohup, %{#{SSHKit.config.command_map[:rake]} RACK_ENV=#{rails_env} RAILS_ENV=#{rails_env} QUEUE="#{queue}" PIDFILE=#{pid} BACKGROUND=yes #{"VERBOSE=1 " if fetch(:resque_verbose)}INTERVAL=#{fetch(:interval)} #{"environment " if fetch(:resque_environment_task)}resque:work #{output_redirection}}
+              execute %{#{SSHKit.config.command_map[:rake]} RACK_ENV=#{rails_env} RAILS_ENV=#{rails_env} QUEUE="#{queue}" PIDFILE=#{pid} BACKGROUND=yes #{"VERBOSE=1 " if fetch(:resque_verbose)}INTERVAL=#{fetch(:interval)} #{"environment " if fetch(:resque_environment_task)}resque:work #{output_redirection}}
             end
             worker_id += 1
           end
@@ -130,7 +130,7 @@ namespace :resque do
         create_pid_path
         pid = "#{fetch(:resque_pid_path)}/scheduler.pid"
         within current_path do
-          execute :nohup, %{#{SSHKit.config.command_map[:rake]} RACK_ENV=#{rails_env} RAILS_ENV=#{rails_env} PIDFILE=#{pid} BACKGROUND=yes #{"VERBOSE=1 " if fetch(:resque_verbose)}MUTE=1 #{"DYNAMIC_SCHEDULE=yes " if fetch(:resque_dynamic_schedule)}#{"environment " if fetch(:resque_environment_task)}resque:scheduler #{output_redirection}}
+          execute %{#{SSHKit.config.command_map[:rake]} RACK_ENV=#{rails_env} RAILS_ENV=#{rails_env} PIDFILE=#{pid} BACKGROUND=yes #{"VERBOSE=1 " if fetch(:resque_verbose)}MUTE=1 #{"DYNAMIC_SCHEDULE=yes " if fetch(:resque_dynamic_schedule)}#{"environment " if fetch(:resque_environment_task)}resque:scheduler #{output_redirection}}
         end
       end
     end