first go at implementing the async-by-default view manager
Mongo view can now block until changes from processing a specific command have become visible
fixed bug that was introduced while working with the view dispatcher helper
moved some stuff around and impl ability to block on the event dispatcher
don't use cached low watermark when blocking
changed API of view locator to be able to return any number of view IDs
moved some stuff around
added some more tests
getting ready to add new mssql managed view
first go at making new SQL managed view
cut down on the cw
cut down on the logging as well
updated changelog
added configuration API