Elasticsearch Support Diagnostic 5.1.3

• Settings displayed in flattened format.
• Added build instructions.
• shards.json displayed in bytes.
• nodeId added to cat_nodes
• Logstash option collects plugins
• Fixed issue with custom logstaash port
• Calls for machine learning
• Jstack call added to system calls
• Missing major version displays error message
• Call to /_cat/count removed. Already in indices_stats, and errors out if >1k shards.
• Added detailed to tasks call.
• Modified message for password prompt
• Added documentation for timed runs
• Removed minimum interval check for timed runs.
• Added flag to take only hot threads and jstack calls.