Fabrik github installation

[sales2010]

Hello,

I just installed a new dev website and want to add fabrik, but i see this message after press Discover in Joomla:

Failed loading XML file
.../plugins/fabrik_element/viewlevel/viewlevel.xml
XML: Malformed declaration expecting version
XML: Blank needed here
XML: parsing XML declaration: '?>' expected
XML: Start tag expected, '<' not found

i changed the file content with following code:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<extension group="fabrik_element" method="upgrade" type="plugin" version="2.5">
<name>plg_fabrik_element_viewlevel</name>
	<author>Rob Clayburn</author>
	<copyright>(C) 2005-2012 fabrikar.com</copyright>
	<license>http://www.gnu.org/copyleft/gpl.html GNU/GPL</license>
	<authorEmail>rob@pollen-8.co.uk</authorEmail>
	<authorUrl>www.fabrikar.com</authorUrl>
	<version>3.0.6.3</version>
<files>
<filename>viewlevel.php</filename>
		<filename>index.html</filename>
		<filename>viewlevel.js</filename>
		<filename>viewlevel-min.js</filename>
		<folder>forms</folder>
		<folder>language</folder>
	</files>
</extension>

Also, there is a problem after i selected all fabrik discovered items and press install:

-1 - An error has occurred.
Cannot find source folder

Return to Control Panel

Returning to the Extension Manager/Manage i see that only the following items are installed:Content Fabrik plugin and Administrator component

For the rest of the items, i have to return to Discover area