Remove ability to change 2D/CV projection at runtime.  Cleanup camera creation in tests
Rename scene2D.projection to mapProjection
Added MapProjection interface for documentation
Added options parameter to Scene constructor
Merge remote-tracking branch 'origin/master' into projection
Add mapProjection option to Viewer and CesiumWidget
Doc tweak
Merge remote-tracking branch 'origin/master' into projection
Renamed Simon1994PlanetaryPositions functions
More renames
Merge master to projection
Mark definitionChanged readonly
Merge pull request #1783 from AnalyticalGraphicsInc/renames

Renamed Simon1994PlanetaryPositions functions
Mark more properties readonly
More readonly properties
Merge master to projection
Merge pull request #1784 from AnalyticalGraphicsInc/more-doc

Use readonly for more getters
Fix ScreenSpaceCameraController tests and a doc fix.
Merge pull request #1775 from AnalyticalGraphicsInc/projection

Make map projection ready-only
Merge branch 'master' into refdoc-2