Bug 894872 - Memory Card import needs to support contact dedup
Bug 913065: Fallback setImmediate impl for workers
Merge pull request #11955 from jmcanterafonseca/vcard_3

Bug 894872 - Memory Card import needs to support contact dedup
Merge pull request #11960 from wanderview/shared-setimmediate-worker

Bug 913065: Fallback setImmediate impl for workers - r=timdream