Corrected javadoc warnings.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2158 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Modified the stars layer to work with a 2D globe. Modified the stars layer to draw at an infinite distance from the viewer.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2176 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Repaired the 2D polar projection's cartesian to geographic conversion.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2177 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Repaired Frustum.fromProjectionMatrix.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2178 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Cleaned up unnecessary abstract methods in AbstractViewInputHandler and BasicViewInputHandler.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2179 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Corrected the minimum elevation in config/EarthElevations2.xml to reflect the actual minimum value in the extreme elevations file. Repaired per-tile extreme elevation computations in BasicElevationModel.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2180 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Modified FlatGlobe's north pointing tangent and surface orientation methods to return values consistent with the current projection. Removed usage of SkyColorLayer in FlatWorldPanel.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2181 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Removed the 2D cautra projection and its usage in FlatWorldPanel.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk/WorldWind@2182 822214bb-dcf7-4c8d-a767-17ae0fb20d88
Merge branch 'official' into worldwind-rcp-sdk