tree abf97ef6c6a68e34e223adf68835e96a2fff1517
parent f94e52cad91c65a63acc1e75d4be223ea22e99bc
author Joe Tsai <joetsai@digital-static.net> 1501284996 -0700
committer GitHub <noreply@github.com> 1501284996 -0700

Use an Options group instead of copying-append (#22)

A copying-append runs in O(n) where n is the number of options.
Instead, just create a new Options group, which is O(1).

Also switch the tests to run in parallel to increase chances of
detecting races.