Display a proper error message if the PHP version 5.5 requirement is
not fulfilled instead of a fatal error "unexpected 'class' (T_CLASS)"
which might not even be displayed depending on server configuration.

Resolves: #64504
Releases: master
Change-Id: I04ae67e7fde645ff3a157192b437eae50041b6f9
Reviewed-on: http://review.typo3.org/36266


Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>
Reviewed-by: Andreas Fernandez <andreas.fernandez@aspedia.de>
Tested-by: Andreas Fernandez <andreas.fernandez@aspedia.de>
Reviewed-by: Alexander Opitz <opitz.alexander@googlemail.com>
Tested-by: Alexander Opitz <opitz.alexander@googlemail.com>