Helen version 0.1.1 released

Helen, our network traffic generation library, has released version 0.1.1. Mostly, this version focused on stablity and small bug fixes. The most important change is how interfaces are specified for multicast traffic; this is now done by IP address, not name. The names assigned to interfaces are not constant under Windows as they rely on what order the interfaces are made active. IP address is much more fixed.

This version of Helen is a good candidate for a stable release 0.2.0 if no issues are identified, expect an 0.2.0 stable release soon.