Hello Tinymath

The Goat News team is over here gearing up for ElasticON, so expect updates to be a bit behind. That said, 0.1.1825 is both Kibana 6.2.2 compatible AND brings with it our new math expression parser, Tinymath. MathJS served us well, but we needed something a bit more tailored to our needs. You'll find it used in math and pointseries. The syntax should be the same and we don't know of any breakages, but that doesn't mean they aren't there. Check out the Tinymath README.md and the Tinymath function reference while we work on getting the Tinymath docs onto this site!