Issue #17 SingleOutcome type specification is now fail-fast
Issue #12 UpdateCountOutcome for obtaining counts of updated rows
Issue #12 Loggable for UpdateCountOutcome.handle
Merge pull request #19 from carlosmiranda/17

#19: pull request Issue #17 SingleOutcome type initialization is now fail-fast
Merge pull request #20 from carlosmiranda/12

#20: pull request Issue #12 UpdateCountOutcome for obtaining counts of updated rows