add 7.0 as explicitely supported PHP version
-rw-r--r-- 1345 LICENSE
-rw-r--r-- 4496 Makefile
-rw-r--r-- 1968 README.md
-rwxr-xr-x 973 check-packagexml.php
-rw-r--r-- 443 gen-matrix.php
-rwxr-xr-x 964 php-version.php