remove default startup notification message; if empty string, clients do not display any startup notification, so this should be the default behavior.
Add init_request() to recording_collection for #154
Refactor init_request() and update_request() in recording_collection into one function to fix #154.
Fix tests because RecordingCollection.__init__() no longer updates nearby recordings automatically.
Merge pull request #159 from eosrei/154/overlapping-v2

Fixing overlapping audio by not updating nearby audio on init.
Merge branch 'install' of https://github.com/hburgund/roundware-server into install
enabling CORS support in Apache by default to facilitate voice map, listen map and other web-based stuff
Replace old/removed common.py setting constant with correct setting
Adding a Django app 'api2' for the new API with Token authentication
REST APIV2 - Implement Asset list/instance using a ViewSet
REST APIV2 - Implement basic Event, ListeningHistoryItem, Project, Session, Tag end points equal to V1
Create t() for translation, import RoundException, simplify get_available_assets() and request_stream()
Add non-functional StreamViewSet, update DRF, enable api2 logging, additional comments.