Added new social buttons to the site.

[Sevam]

Dear  friends, I removed the old social networks buttons throughout the site and added new ones from addthis.

Now it's a floating menu. Here on the forum and in the wiki it floats on the right.
In seo tools, it floats on the left.

On mobile phones it floats at the bottom.

Please, if it's not difficult, click on the new social buttons. Share pages that you like.
Thanks in advance.