Unmaintained [ValveTime.net] LinkedIn Share Button 1.1

I wasn't particularly happy with how I hooked this code in the previous version.

It used a str_replace that in the non-TMS version which placed the code within the Google +1 <xen:if tags resulting in the button only being displayed if you also had Google+ enabled.

The update now puts the Linked In code right at the start of the template_hook, so the position of the button has now changed.

This also reduces the risk of any other add ons interfering with this one.

This update is recommended for those who do not use G+ and to ensure future compatibility.