replace the DomainChangeListener class with a signal/slot combo
resolve conflicts on merge with upstream master
Merge branch 'master' of https://github.com/worklist/hifi into domain-change
Merge pull request #1516 from birarda/domain-change

replace the DomainChangeListener class with a signal/slot combo
Merge branch 'master' of https://github.com/worklist/hifi into armstrong