-SearchBarController in DestinationsMasterViewController works to search for a station name
-added detailTextLabel to StationCell
-added SearchCell to DestinationsMasterViewController, allows user to enter their own search term (for a new address), which appears above station name results
-Moved Station and Address classes under the superclass MyLocation, which uses the MKAnnotation protocol and contains the always-useful name, coordinate, latitude and longitude properties
-Moved data controller functionality from StationDataController to more generic LocationDataController, which will contain all lists of various types and subtypes of MyLocation
-Proper sectioning of the SearchCell and StationCell areas of the tableView
ignore .xcbkptlist