e2e test for injector
injector tests, some fixes to multiserver client and worker, also runner and its tests
removed an outdated test
removed commented code
added missing injector logic on testing at, after and func_name
Merge branch 'sprint_3_injector_API_and_tests' of github.com:meetings/gearsloth into sprint_3_injector_API_and_tests
Merge pull request #11 from meetings/sprint_3_injector_API_and_tests

Sprint 3 injector api and tests