Add syslog logging support.
Tweak syslog integration. Allow SSL files for cloudi_service_http_cowboy to be configured with environment variables that are expanded.
Add cloudi_service_queue for persistent queuing of service requests.
Tweak cloudi_service_queue.
Fix cloudi_service_queue.  Add it to the default configuration.
Tweak cloudi_service_queue to minimize file operations.
Add retries to cloudi_service_queue. Simplify the default configuration.
Add fault_isolation argument to cloudi_service_queue. Add cloudi_service:send_async_active/8 for manually specifying the transaction id used in the service request.
Fix LinuxMint compilation issues.
Fix external service validation done during OS process spawn.
Add websocket_ping to cloudi_service_http_cowboy. Add cache to cloudi_service_filesystem (so HTTP cache controls can be used when the cached files are refreshed).
Add CT tests for cloudi_service_queue. Add a constraint based on testing for NextName in cloudi_service_queue both fault_isolation mode.
Simplify cloudi_services_monitor log messages. Provide configuration format within log at start-time. Fix configuration removal when MaxR is met. Update uuid.
Add more flexible nodes configuration. Update nodefinder (a rewrite) and remove the older nodefinder cruft. Support EC2 Erlang node auto-discovery based on security groups and/or tags. Move external Erlang dependencies into directories with cloudi_x_ prefix so that include_lib can be used without problems.
Add the ability to change the distributed Erlang node connection type with the listen and connect nodes configuration options.
Make configuration changes to the listen and connect nodes configuration options reset the configuration of cpg and nodefinder.
Add cloudi_service_api:nodes_set/2 for dynamically configuring CloudI nodes configuration.
Update nodefinder to add support for boolean expressions when using ec2 with tags and/or groups. Enforce a minimum node reconnect time based on the configured net_kernel:connecttime/0.
Fix ec2 discovery groups/tags validation for syntax additions.
Fix nodefinder scope.