1.7.0-rc1
Update changelog.md
Fix CustomEventEmitter error handling

Override .emit() to first check whether the error argument is an array. In case
it is an array, reduce it to the very first error and pass it to the original
EventEmitter.emit()
Removed .only from tests
Merge pull request #1240 from saschagehlich/feature/customeventemitter-throw-error

Fix CustomEventEmitter error handling
use defaults instead of extends for dialect support
Fix CustomEventEmitter

Make sure that objects passed to CustomEventEmitter's `error` event
are boiled down to real Error instances so that node's EventEmitter
does not give us this nasty "Uncaught, unspecified error" thing.
Fix typo
Merge pull request #1245 from saschagehlich/bugfix/customeventemitter-fix

Fix CustomEventEmitter