secret-handshake: 4 changes:  add test case for number > 31 that also has
one of the first five bits set, clarify test comparison, add a benchmark,
and add an exported function comment.
Update configlet binaries
Paasio combined commit for close(start) and other changes:
* Simplify `close(start)` per line note https://github.com/exercism/xgo/commit/a252a4d0908dbcb443c2e9a1e5d8b61b5410bd59#paasio-paasio_test-go-P113
* Drop error return on constructors per nitpicking discussion.
* Add TestVersion per discussion on https://github.com/exercism/exercism.io/issues/1657
* Simplify example a bit, including commenting out untested code.
Merge pull request #95 from exercism/paasio-updates

Paasio combined commit for close(start) and other changes:
New exercise food-chain