Log Message:
Update ruby-daemons to 1.2.1.

== Release 1.2.1: March 10, 2015

* increase version number to be able to re-push to rubygems

== Release 1.2.0: March 8, 2015

* add options for custum log file names.
* change pid file name scheme to "#progname_num#{number}.pid" for \ 
multiple instances.
* fix call_as_daemon not saving the PID (thanks Roberto Plancarte)
* allow for custom statis messages (thanks to Joseph Haig)
* fix Pid.running? rescuing timeout exceptions (thanks to Geraud Boyer)
* monitor.rb/application.rb/application_group.rb: handle :monitor and :multiple \ 
in combination correctly
  (thanks to Prakash Murthy).
* pidfile.rb: Handle invalid or empty pid files instead of returning pid 0 \ 
(thanks to Aaron Stone)
* run the whole gem through Rubocop (thanks to Aaron Stone)
* gem cleanup (thanks to Aaron Stone)