Version 2.10

Major rewrite of Polar Manager, move to Bluewater-specific .plr file format. Expedition/Deckman still supported. Sailonline polar files are now supported.  Substantially more editing functions added to Polar Manager. Route manager modified to combine routes and marks into one display tree.

Version 1.60

Enhanced support for NMEA instruments. Updater is now silent during updates. Bug fixes: When sorting route manager entries by column, colors of routes were lost. Repaired bug in gribDescription.tcl popup for cloud cover. Performance functions will no longer erroneously use