added header and pull-to-refresh native bug hack
Added categories
added categories
Added MapViewControllerDelegate
Updated proj file
updated TODO list and Global Constants
updated TODO list and global constants. The last commit was updating MapViewController to accommodate orientation change, which may be reverted in the future.
scaled images to right size.
minor updates
added header separator only.
added watermark.
improved performance on old devices by dispatch_async.
toggled nav bar buttons enabled/disabled end/during refreshing.