Version change to 2.1.1

Updated version in line with changes to MarkupBlog
Added ability to control position of featured image

- Added ability to control position of featured image. In renderPosts()
$featuredImage array, specifying the key=>value pair 'position'=>'above'
will output the image above the post-headline. The default is
'position'=>'below'. This outputs the image below the post-body.
- Version change to 2.1.1