Merge pull request #8 from mark-a-j-adriano/vendor-module

change `type` to ` silverstripe-vendormodule`

Author: marc-firebrand

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "firebrandhq/silverstripe-excel-export",
     "description": "Silverstripe module offering DataFormatters to export DataObjects in Excel format.",
-    "type": "silverstripe-module",
+    "type": "silverstripe-vendormodule",
     "require": {
         "phpoffice/phpexcel": ">=1.8",
         "silverstripe/cms": ">=3.1"
@@ -14,8 +14,8 @@
         }
     ],
     "suggest": {
-		"silverstripe/restfulserver": "If you install the restfull server, you'll be able to dynamically generate SpreadSheet on the fly."
-	},
-	"minimum-stability": "dev",
-	"prefer-stable": true
+        "silverstripe/restfulserver": "If you install the restfull server, you'll be able to dynamically generate SpreadSheet on the fly."
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }