Removed non-voting member as it was decided this doesnt mean anything.
Added errata explanation to the workflow bylaw
This relates to a [poll](https://groups.google.com/forum/?fromgroups=#!topic/php-fig/89he2UxZopk) on the mailing list, where errata is going to be a thing.
Errata goes in meta doc & requires vote.
Merge pull request #162 from philsturgeon/master

Added errata explanation to the workflow bylaw