Rename CompoundPath#flatten() to #reduce(), to avoid clash with Path#flatten().

src/path/CompoundPath.js

@@ -72,7 +72,7 @@ var CompoundPath = this.CompoundPath = PathItem.extend(/** @lends CompoundPath#
 	 *
 	 * @return {CompoundPath|Path} the flattened compound path
 	 */
-	flatten: function() {
+	reduce: function() {
 		if (this._children.length == 1) {
 			var child = this._children[0];
 			child.insertAbove(this);

src/path/Path.js

@@ -948,10 +948,10 @@ var Path = this.Path = PathItem.extend(/** @lends Path# */{
 	},
 
 	/**
-	 * For simple paths, flatten always returns the path itself. See
+	 * For simple paths, reduce always returns the path itself. See
-	 * {@link CompoundPath#flatten()} for more explanations.
+	 * {@link CompoundPath#reduce()} for more explanations.
 	 */
-	flatten: function() {
+	reduce: function() {
 		return this;
 	},
 

src/svg/SvgImport.js

@@ -382,7 +382,7 @@ new function() {
 				break;
 			// http://www.w3.org/TR/SVG/masking.html#ClipPathProperty
 			case 'clip-path':
-				var clipPath = getDefinition(value).clone().flatten();
+				var clipPath = getDefinition(value).clone().reduce();
 				item = createClipGroup(item, clipPath);
 				break;
 			// http://www.w3.org/TR/SVG/types.html#DataTypeTransformList