A JOSM plugin to interface to Darryl Shpak's Lakewalker module

 - On-screen feedback to Lakewalker progress with cancel
 - Tag ways appropriately
 - limit ways to length
 - Access all lakewalker options via preferences and via ctrl-click pop-up dialog
 - Manage Landsat image cache from Prefs screen
 - Read data in thread
 - ...