Enfold and PHP7 compatibility errors – Not Urgent

Hi
I have just run a PHP7 compatibility checker provided by wpengine on a development site. there were only 2 errors and a few warnings, I have copied them below for info, this isnt urgent but I am keen to be able to use PHP7 for new projects as soon as possible.

/wp-content/themes/enfold/config-layerslider/LayerSlider/helpers/phpQuery.php
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FOUND 2 ERRORS AND 4 WARNINGS AFFECTING 6 LINES
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2231 | WARNING | Method name “phpQueryObject::__pseudoClassParam” is discouraged; PHP has reserved all method names with a double underscore prefix for future use
2467 | WARNING | Method name “phpQueryObject::__loadSuccess” is discouraged; PHP has reserved all method names with a double underscore prefix for future use
2631 | WARNING | Method name “phpQueryObject::___wrapAllCallback” is discouraged; PHP has reserved all method names with a double underscore prefix for future use
4207 | ERROR | Function split() is deprecated since PHP 5.3 and removed since PHP 7.0; use preg_split instead
4275 | WARNING | Method name “phpQueryObject::__dumpTree” is discouraged; PHP has reserved all method names with a double underscore prefix for future use
5637 | ERROR | Using ‘break’ outside of a loop or switch structure is invalid and will throw a fatal error since PHP 7.0
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