Avoid utils.starts_with() from checking the entire haystack with lastIndexOf()
Fix AppStates.setup() test
Fix missing param in a callback in InteractionMachine.err()
Merge branch 'feature/issue-36-initial-changes-for-v02' into feature/issue-55-basic-apptester-interaction-task-methods
Revert previous commit, there was no bug
Merge branch 'feature/issue-36-initial-changes-for-v02' into feature/issue-55-basic-apptester-interaction-task-methods
AppTester interaction task message sending tests
Implement interaction task methods and flesh out the corresponding tests