Breaking: #62914 - Early check for PHP 5.5 in Install Tool 

See forge#62914

Description 

PHP 5.5 or above is a requirement for TYPO3 CMS7. As code is using specific PHP 5.5 features, an early check is required in Install Tool.

Impact 

Install Tool will throw an exception if PHP 5.5 or above is not detected.

Affected installations 

Any installation without at least PHP 5.5.0.

Migration 

Upgrade to PHP 5.5 or above.