Docs on error handling.
Merge branch '0.3.x'
Update hardware.md

phrasing
Merge pull request #22 from malcolmsparks/patch-1

Update hardware.md
Update README.md
Merge.
Fix possible peer deadlock when peer completes.
Changelog.
Merge fix for deadlock.
README for 0.3.3
Merge.
Docs, tagging 0.3.3
Prepare for next dev cycle.
Update changes.md
Merge.
Starts work for grouping via catalog.
Remove print.
Wip: UUID for sentinel reduction.
Apparently MD5 isnt thread safe. Reinstantiate each time.
Finishes test for grouping and fix for live lock.