Move PaperScript.js to core.

src/load.js

@@ -78,8 +78,9 @@ var sources = [
 
 	'src/util/CanvasProvider.js',
 	'src/util/Numerical.js',
-	'src/util/PaperScript.js',
 	'src/util/BlendMode.js'
+
+	'src/core/PaperScript.js',
 ];
 
 // Load unit tests after library if asked to do so

src/paper.js

@@ -99,9 +99,10 @@ var paper = new function() {
 
 //#include "util/CanvasProvider.js"
 //#include "util/Numerical.js"
-//#include "util/PaperScript.js"
 //#include "util/BlendMode.js"
 
+//#include "core/PaperScript.js"
+
 // Finally inject the classes set on 'this' into the PaperScope class and create
 // the first PaperScope and return it, all in one statement.
 return new (PaperScope.inject(this));