Added the supervisor_version variable to be able to choose the specific version of supervisor we want.
Added supervisor_conf_file variable.
Remove call of supervisorctl to reread and upload since the service is restarted if needed. Also, those calls should be made with sudo otherwise an error occurs.
Merge pull request #3 from YAmikep/develop

Added the supervisor_version variable to be able to choose the specific version of supervisor we want.