Date formatting issue with Time Series Visual Builder

[alexfrancoeur]

Related to #9725

@simianhacker I can't seem to change the date with timelion in both the panel and metric options. They show up as available options but when selected, I get the following error in Kibana. Thoughts?

status: 400, displayName: 'BadRequest', message: '[illegal_argument_exception] Invalid format: "2015-11-25T11:16:25.765Z" is malformed at "T11:16:25.765Z"', path: '/*/_field_stats', query: { level: 'indices', ignore_unavailable: true }, body: { error: { root_cause: [Object], type: 'illegal_argument_exception', reason: 'Invalid format: "2015-11-25T11:16:25.765Z" is malformed at "T11:16:25.765Z"' }, status: 400 }, statusCode: 400, response: '{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Invalid format: \\"2015-11-25T11:16:25.765Z\\" is malformed at \\"T11:16:25.765Z\\""}],"type":"illegal_argument_exception","reason":"Invalid format: \\"2015-11-25T11:16:25.765Z\\" is malformed at \\"T11:16:25.765Z\\""},"status":400}', toString: [Function], toJSON: [Function] }

Date format is the following
"dropoff_datetime": { "type": "date", "format": "yyyy-MM-dd HH:mm:ss" }

There doesn't seem to be an issue in Timelion