Title / Meta Problem

Hello,

First, i would like to thank you for this plugin.

My question is pretty simple, when i check my homepage source codes, i see these lines:

</script>
	<link rel="canonical" href="http://www.hitman.gen.tr/" />
	<meta property="og:type" content="blog" />
	<meta property="og:title" content="Mehmet Tahta" />
	<meta property="og:description" content="Level 26 Human Geek" />
	<meta property="og:url" content="http://www.hitman.gen.tr" />
	<meta property="og:site_name" content="Mehmet Tahta" />
	<meta name="twitter:card" content="summary" />
	<meta name="twitter:site" content="@mehmettahta" />

<!-- This site is optimized with the Yoast WordPress SEO plugin v1.2.8.7 - http://yoast.com/wordpress/seo/ -->
<title>SEO, WordPress, jQuery ve dahası | Mehmet Tahta</title>
<meta name="description" content="Mehmet Tahta'nın WordPress, SEO, jQuery vb. konuları üzerine makalelerini yayınladığı kişisel web günlüğü."/>
<link rel="canonical" href="http://www.hitman.gen.tr/" />
<link rel="next" href="http://www.hitman.gen.tr/page/2" />
<meta name="robots" content="noodp,noydir"/>
<link rel="publisher" href="https://plus.google.com/114049826995748188246/"/>
<meta property='og:locale' content='en_US'/>
<meta property='og:title' content='SEO, WordPress, jQuery ve dahası | Mehmet Tahta'/>
<meta property='og:description' content='Mehmet Tahta'nın WordPress, SEO, jQuery vb. konuları üzerine makalelerini yayınladığı kişisel web günlüğü.'/>
<meta property='og:url' content='http://www.hitman.gen.tr/'/>
<meta property='og:site_name' content='Mehmet Tahta'/>
<meta property='og:type' content='website'/>
<!-- / Yoast WordPress SEO plugin. -->

As you see, there is 2 different metas here. I want to override theme or wordpress metas and use your plugin’s datas. Is there any way to do it?Click to visit my blog.

Thank you!

http://wordpress.org/extend/plugins/wordpress-seo/