implemented NSCopying of reports, started mapping out local storage
added MKAnnotation methods to report; fixed a bug for affixing locations to reports;  got basic local data storage working.
tracking map view changes and fetching new reports as needed
prototyping annotation views
fixed thumbnail fetching to use threads
made report property of report vc public api. ReportVC can now be used for displaying arbitrary reports
implemented report display
added rounded corners to report images
tweaked ui of report view to include permanent labels