Add relx releases 

So that we can eventually make some debs!
Move to src folder
Merge branch 'release'
Start adding functions to rollup data

Need something to go over the data and return values
at the interval graphite would expect
Take first metric of that bucketed interval

So if we have 60 seconds of 1-second data, just use the first datapoint.
Eventually this can be changed to support other aggregations like taking
the last data point or maintaining the average of all points in that bucket.
Support multiple metrics in multiple bucket intervals
Use foldl instead of doing it manually.
Be able to get metrics
More compact time representation on disk

Instead of the string of the second since epoch it encodes it in 4 bytes.
Remove lots of annoying prints
Arbitrary rollup bucket size
List async
Stop writing back to carbon senders
Write once in sync then multiple async

To help speed up the write but still have back pressure.
Remove lots of slow printing
leveldb: Use async writes
Clean up serialization, use matching

Doesn’t seem to be any faster, still ~1s for 86400 items
Fix travis running of tests with apps/ dir
Fix tests now that it needs numbers
Use ints instead of binaries for numbers

And convert closer to the edge instead of in the middle