Updated access package metrics

Include changes from access package in https://github.com/m-lab/access/releases/tag/v0.0.4

Weekly release

fix(docker-compose.yml): make sure it works on macOS (#318) …
Add ndt7test package for creating an ndt7 server for unit tests (#319) …

Additional error logging

Update error log (#308)

New default landing page & Consistent ndt5 metric labels

Move default webpage (#305)
Add consistent ndt5 protocol metric labels (#306)

Add server read and write timeouts

Create http.Server with Read and Write timeouts (#304)

Fix ndt7 error metrics

Fix error metric increments (#301) …

Fix metrics, buffer size, and reference ndt7 JS client

Reference client fixes (#290) …
Fix netx.Conn metrics and reduce ndt7 websocket buffer (#299) …

netx.Conn with NDT5Result update and NDT7 metrics

Add metrics shared with clients to ArchivalData (#289) …
Refactor ndt7 Upload and Download handlers (#292) …
Move conn close to runMeasurement handler (#294)
Eliminate saver logic and remove sender & receiver channels (#295) …
Add "netx" package to replace fdcache (#296) …
Remove fdcache, use netx.Listener throughout (#297) …
Add metrics to ndt7 server and netx.Conns (#298) …

Eliminate s2c FillUntil error rates

Add separate token required flags for ndt5 and ndt7 (#286)
Make FillUntil errors non-fatal (#285)
Add support for loading multiple verify keys (#288)

Use standard access/controller and label monitoring metrics

Use access/controller.Setup for NDT tx and token controller support (#274)
Add monitoring label to TestRate histogram (#276) …
Label ndt7 test rates based on ws or wss protocol (#279)
Attempts to fix a small race condition in setting that.results.c2sRate (#283)
Coverage improvement in one package (#284) …