Localized Operator Error Handling

- use the lift function rather than try/catch in subscribe since this catches at the operator level rather than for an entire sequence
- unit tests with onErrorResumeNext demonstrating the use cases
Merge pull request #924 from benjchristensen/lift-error-handling

Localized Operator Error Handling
[Gradle Release Plugin] - pre tag commit:  '0.17.0-RC5'.
[Gradle Release Plugin] - new version commit:  '0.17.0-RC6-SNAPSHOT'.