Refactored signal handling - don't restart with USR2
Refactored signal handling - don't restart with USR2

grosskur/agent,grosskur/agent,es/agent,Jasperswaagman/agent,Shopify/agent,es/agent,es/agent,Jasperswaagman/agent,buildkite/agent,grosskur/agent,buildkite/agent,Jasperswaagman/agent,buildkite/agent,Shopify/agent,Shopify/agent