Make Sandcastle autocomplete work without combine step.

Sandcastle had an uneeded dependancy on `Build/CesiumUnminified/Cesium.js`
(generated during the combine step) since the `Source/Cesium.js` file could
provide the same functionality (and is created during the build step).

This means that for a fully functionaly sandcastle you only need to run
`build` and `generateDocumentation` which is way faster than
`combine and generateDocumentation`.
Fix punctuation in comment.
Merge pull request #2164 from AnalyticalGraphicsInc/sandcastle-tweak

Make Sandcastle autocomplete work without combine step.
Merge pull request #2161 from AnalyticalGraphicsInc/maki

Initial commit of maki icon set.
Add default web.config file for easier IIS deployment

We package the web.config at the root of the release zip as well as the build CesiumViewer app.
Merge pull request #2166 from AnalyticalGraphicsInc/web-config

Add default web.config file for easier IIS deployment
Merge remote-tracking branch 'origin/master' into simplestyle

Conflicts:
	CHANGES.md