Puppet keeps creating new files from fpm-pool.conf.erb

Ruby hashes do not guarantee stable ordering. Every time the order changes a new fpm-pool config is created and php-fpm is reloaded.
The options arrays need to be sorted to make sure the fpm pool configuration file doesn't change from puppet run to puppet run.
Merge pull request #1 from mhagstrand/master

Puppet keeps creating new files from fpm-pool.conf.erb