Update SingleFile and fix several bugs

- Using `sandboxPrototype` properly uses window as prototype
- This commit removes the need for our patch in babel-worker.js:
3d0bc4cf9f
- We properly inject into frames in the client if we ever include frames

scripts/config.js

@@ -37,7 +37,6 @@ const symlinkFiles = [
 	'!resource/SingleFile/**/*',
 	'resource/SingleFile/lib/**/*',
 	'resource/SingleFile/extension/lib/single-file/fetch/content/content-fetch.js',
-	'!resource/SingleFile/lib/single-file/processors/frame-tree/content/content-frame-tree.js',
 	'!resource/SingleFile/lib/single-file/single-file.js',
 	'update.rdf'
 ];
@@ -91,7 +90,6 @@ const jsFiles = [
 	'resource/react.js',
 	'resource/react-dom.js',
 	'resource/react-virtualized.js',
-	'resource/SingleFile/lib/single-file/processors/frame-tree/content/content-frame-tree.js',
 	'resource/SingleFile/lib/single-file/single-file.js'
 ];