Allow SVG through WordPress Media Uploader - http://css-tricks.com/snippets/wordpress/allow-svg-through-wordpress-media-uploader/
<?php
function cc_mime_types( $mimes )
{
$mimes['svg'] = 'image/svg+xml';
return $mimes;
}
add_filter( 'upload_mimes', 'cc_mime_types' );
?>