scene source specs
CompositePrimitive, apps
ellipsoid,centralbody
ellipsoid, ellipsoidal occluder
Merge branch 'master' into getSetProperties
fix ellipsoid
update sandcastle
fix terrain inspector
remove enumerable
Move `defineProperties` to be called at modules cope.

Also remove `configurable : true` since we don't need to have it set.
Update CHANGES.md
update doc
typos
Doc fixes and some minor doc cleanup.

When defining properties, memberof must specify the prototype for jsdoc to mark them as instance properties and not static.
Merge pull request #1464 from AnalyticalGraphicsInc/getSetProperties

Replace get/set functions with properties