Previously, scrapers would scrape the target 10 times. This was
because each scraper subscriber was not put into a queue group.
I've added the queue group "metrics" and now we the subcribers
will only scrape the target once.
Additionally, I moved to using nats memory instead of nats file
store. We don't need durability for scraper runs across restarts.
I did this with a dumb editor macro, so some comments changed too.
Also rename root package from platform to influxdb.
In interest of minimizing risk, anyone importing the root package has
now aliased it to "platform" so that no changes beyond imports were
necessary in those files.
Lastly, replace the old platform module to local path /dev/null so that
nobody can accidentally reintroduce a platform dependency while
migrating platform code to influxdb.
Chris Goller
Kelvin Wang
Mark Rushakoff