Do hiera lookup of php::fpm::pools with hash-merging
Refactor php::fpm::config to be a sane class
Fix specs for php::fpm::config
Clean up php::fpm::package
Fix php::fpm spec
Fix php::fpm::config & spec for inifile configs
Use php::fpm::config::php_settings instead of _config

Be persistent with php::cli::settings. FPM has its own config, so it's a
bit confusing.
Fix php::fpm::config specs for php_settings
Default FPM user and group are now in php::fpm::config
Add simple php::fpm::pool spec