Fix pick clear color
Merge branch 'master' into pickColor
Add TerrainInspector app.
Enable terrain and fix a race condition.

The race could makes tiles sometimes not show up as wireframe when they
should.
Show bounding spheres and render only selected.
Merge remote-tracking branch 'origin/master' into terrainInspector

Conflicts:
	Source/Scene/Tile.js
Remove commented-out code.
Merge remote-tracking branch 'origin/master' into pickColor
Changes suggested by Scott.
Move javascript to a separate file.
Use defined function.
Merge remote-tracking branch 'origin/master' into terrainInspector
Fix warnings.
Include the response message in the error when postMessage fails.
Remove error property from DeveloperError and RuntimeError.

Errors can't be sent back from Web Workers.  We can still capture the stack trace as a string and use that, without the error object.
Add error property removal to CHANGES.
Merge pull request #1041 from AnalyticalGraphicsInc/fixExceptionsFromWebWorkers

Remove error property from DeveloperError and RuntimeError.
Change Enumeration reference equality checks to perform a value comparison. Work around transferable object bug in Firefox.
Merge remote-tracking branch 'origin/master' into pickColor
Fix pick clear color for real