Update the NEWS file to reflect v2.0.0 changes.

NEWS

@@ -1,5 +1,80 @@
-Version 1.99.5
+Version 2.0.0 - February 25, 2010
-* October 30, 2008 (source code snapshot release)
+
+  FlightGear 2.0.0. reflects the maturation of the OpenSceneGraph port
+  that started with the previous 1.9.0 release. In addition to many
+  internal code improvements, FlightGear 2.0.0. marks the introduction
+  of many new exciting improvements in the graphics and sound system,
+  as well as improved usability of key features, and improved behavior
+  of exsisting features. Highlights of this new version include:
+  Dramatic new 3D clouds, dramatic lighting conditions, improved
+  support for custom scenery, and many many new and detailed aircraft
+  models.
+
+  Sound 
+  * Complete overhaul of the sound code
+  * doppler effects
+  * distance attenuation
+  * 3D positional sound sources
+  * assignment of sound sources to external objects (i.e. AI controlled
+    aircraft)
+  * User selection of the sound device
+
+  Visual Effects
+  * Use of Shaders for dynamic textures
+  * Use of Effects files
+  * Improved 3D clouds
+  * Color changes based on humidity and other weather effects allow for very
+    dramatic lighting conditions
+  * Dynamic water textures
+  * Text animation based on OSGText
+
+  Usability
+  * Allow screenshots in more common file formats
+  * User selectable sound device
+  * More intuitive selection of the weather settings through the GUI and/or
+    commandline
+
+  Infrastructure
+  * Airport geometry data can be read from the scenery, allowing for more
+    flexible regeneration of terrain tiles
+
+  Internals
+  * Improved efficiency of the property tree
+  * A more efficient ground cache
+  * Many improvements to the route management code
+  * Removed many compiler warnings
+  * More realistic atmosphere model
+
+  Behavior
+  * More realistic ILS behavior
+  * Autopilot improvements
+  * A generic autobrake function
+  * Winds over mountainous areas cause up- and downdrafts that can be used
+    for gliding
+  * More realistic behavior of the route manager
+  * Wild fires, which can be extinguished by firefighter aircraft operating
+    across the multplayer server
+  * Navaid frequencies and radials can be transmitted to Atlas
+
+  Utilities
+  * A python script to visualize Yasim configuration files in Blender
+
+  AI
+  * Allow traffic departing and arriving at the same airport
+  * Add Ground Vehicles - including automobiles, trucks, articulated trucks,
+    trains (including high speed trains)
+  * ATC interactions between AI aircraft and ground controllers
+  * Performance characteristics of AI aircraft can be specified in a
+    performance database
+  * Push-back vehicles are available for a selected number of aircraft
+  * Add escorts for AI carrier - frigates, guided missile cruiser, amphibious
+    warfare ships now make up the Vinson Battle Group
+  * Improved radar functionality - now detects AI escorts etc.
+  * AI objects are now solid (i.e. users can collide with them)
+  * Some preliminary support for SID/STAR procedures for AI aircraft
+
+Version 1.9.0
+* December 20, 2008 (source code snapshot release)
 
 
 New in 0.9.10