fix type error in dir creation for categories

apps/remoteStorage/appinfo/info.xml

@@ -3,7 +3,7 @@
 	<id>remoteStorage</id>
 	<name>remoteStorage compatibility</name>
 	<description>Enables your users to use ownCloud as their remote storage for unhosted applications.</description>
-	<version>0.3</version>
+	<version>0.4</version>
 	<licence>AGPL or MIT</licence>
 	<author>Michiel de Jong</author>
 	<require>2</require>

apps/remoteStorage/lib_remoteStorage.php

@@ -41,7 +41,7 @@ class OC_remoteStorage {
 		$token=uniqid();
 		OC_Util::setupFS(OC_User::getUser());
 		self::addToken($token, $appUrl, $categories);
-		foreach($categories as $category) {
+		foreach(explode(',', $categories) as $category) {
 			//TODO: input checking on $category
 			$scopePathParts = array('remoteStorage', $category);
 			for($i=0;$i<=count($scopePathParts);$i++){