AskVariables returns the map of ALL variables to send to the server, whether they were prompted for, or came from the command line.

given an array of environment names, maps these all to actual objects by querying the server.

ScheduledStartTimeAnswerFormatter is passed to the DatePicker so that if the user selects a time within the next one minute after 'now', it will show the answer as the string "Now" rather than the actual datetime string.