Put Cesium Inspector back on the main menu.
Added Kevin's suggestion to the main menu.
Fix DynamicObjectView offset across scenes and from viewFrom DynamicObject property.
Switch the release process to a single zip file

1. Only generate a single `Cesium-xxx.zip` file which basically includes the contents of the old `full` versions along with the below changes.
2. Move `server.js` to the top level folder
3. Merge multiple `index.html` files into a single, top-level file.
4. Remove Timeline demo from `index.html` and zip file.
5. Add descriptions and improved styling to `index.html`
6. Add link to WebGL report to the home page
Update index.html
Modify Transforms.pointToWindowCoordinates and SceneTransforms.wgs84ToWindowCoordinates to return coordinates whre the origin is at the top left.
Update CHANGES.md.
Change from review.
Add proxying support to node-based server.
Rename clipToWindowCoordinates -> clipToGLWindowCoordinates.
Make Billboard and Label pixelOffset origin be at the top left corner.
Update CHANGES.md.
Merge branch 'master' into viewFrom
Add command line arguments analagous to the old dev server
Remove included Node.js binaries.  Node is now required to be installed on the system when building.

Also run `npm install` before build steps that require npm modules.
Add info about server.js to CHANGES
Include server.js and package.json in zips.  Log a message about running the server directly.
Don't destroy user-specified DataSourceCollection.

When Viewer is destroyed, it should only destroy its DataSourceCollection
if it created it.  A user-supplied DataSourceCollection is owned by the
user.
Merge pull request #1863 from AnalyticalGraphicsInc/viewerDeletesDataSourceCollection

Viewer should not destroy user-specified DataSourceCollection
Merge remote-tracking branch 'origin/master' into oneZip