Hi,

just to inform that I'm getting a warning in the last version of PHP 7 about the constructor and the name of the class.

I've fixed with just renaming both:

```
if (!class_exists('PagebarOptions2')) {
class PagebarOptions2 {

...
...
...

$pagebaroptions = new PagebarOptions2;
```

Not sure how to update the version on SVN repo, so... feel free to ping me to do the pull request :)