* add jaeger support, link hot container & req span
* adds jaeger support now with FN_JAEGER_URL, there's a simple tutorial in the
operating/metrics.md file now and it's pretty easy to get up and running.
* links a hot request span to a hot container span. when we change this to
sample at a lower ratio we'll need to finagle the hot container span to always
sample or something, otherwise we'll hide that info. at least, since we're
sampling at 100% for now if this is flipped on, can see freeze/unfreeze etc.
if they hit. this is useful for debugging. note that zipkin's exporter does
not follow the link at all, hence jaeger... and they're backed by the Cloud
Empire now (CNCF) so we'll probably use it anyway.
* vendor: add thrift for jaeger
* moving documentation around to be more clear and easier to browse
- moved assets into their own directory and updated links to them
- moved operating docs into their own directory
- consolidated kubernetes docs
- added docker-swarm folder for docs
- updated docs layout in docs/README.md to reflect the changes and make it easier to read
* docs: s/Operating Functions/Operating IronFunctions/
* docs: removing duplicate database link
* docs: moving databases into general docs
* docs: moving databases/mqs back
* docs: removing memory.md (duplicate of operating/routes.md)
* docs: converting to markdown bullets
