Changed response format

{
"db": true,
"cache": true,
"elasticsearch": true,
"eventsQueue": true,
"version": "1.12.3"
}

Added composer version.

1.0.0

Added composer version.

v0.0.3

Return error status code: 503 => 'Service Unavailable'.

Added check for mongodb, rabbitmq, elasticsearch & urls

v0.0.2

fixed guzzle version.

v0.0.1

initial commit