Add link to good-influxdb reporter.
Break reporters list into two categories.
Merge pull request #250 from totherik/add-reporter

Add link to good-influxdb reporter.
Update README.md

Updated verbiage regarding reporters.
Update README.md
Error event includes original error
Make logging error object optional, add tests for option
update README.md with logErrorObject option
update tests to match new `code` version