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
Implement random Color generation
Update file
Add custom seed for random numbers
Add new options to random color generation
Tweak random color generation
Move SeededRandom into CesiumMath
Randomize alpha component
Add unit tests for random color generation
Changes suggested by Scott.
Move javascript to a separate file.
Use defined function.
Merge remote-tracking branch 'origin/master' into terrainInspector