Feature: Work item 8769 - Implement Gnumeric File Format

Initial work on Gnumeric Reader (Worksheet Data and basic Document Properties)

git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@60279 2327b42d-5241-43d6-9e2a-de5ac946f064

Classes/PHPExcel/IOFactory.php

@@ -75,6 +75,7 @@ class PHPExcel_IOFactory
 		'Excel2003XML',
 		'OOCalc',
 		'SYLK',
+		'Gnumeric',
 		'Serialized',
 		'CSV',
 	);
@@ -247,6 +248,9 @@ class PHPExcel_IOFactory
 				case 'xml':
 					$reader = self::createReader('Excel2003XML');
 					break;
+				case 'gnumeric':
+					$reader = self::createReader('Gnumeric');
+					break;
 				case 'csv':
 					// Do nothing
 					// We must not try to use CSV reader since it loads