Bug Fixes
- Merge config child nodes on config.set() (65b688a)
- context: Updated postMessage listener to stop validating non-Karma messages (306e565)
- docs: fix stopper.stop wrong variable name. closes #2244 (0745a00), closes #2244
- file-list: ensure patterns are comparable (4d1bf3e), closes #2194
- middleware: fix WARN log when passing undefined error handler to promise.then (20b87de), closes #2227