PHP 7 Support (Part 1)

Hi all, today we will show you our support for PHP 7 which will be part of NetBeans 8.2. First, please let me thank our NetBeans user Junichi Yamamoto who is helping a lot with developing of new features as well as fixing of existing issues. Thanks a lot, Junichi! Please note that PHP 7 is a huge update of NetBeans PHP support so your help with testing and reporting issues is more than welcome (and really appreciated!), thank you. Instructions can be found at the end...