Removes the `STATS` file generated during TSI compaction as it had
potential for becoming inconsistent with the index data. Instead,
stats are recalculated on start up and on each compaction on a
per-partition basis.
Computing stats for 10M series across 10K measurements takes
approximately 0.171s.
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.
Ben Johnson
Mark Rushakoff