[dev-util/kdevelop-pg-qt] Use correct branch for KDE 4 version.

Package-Manager: portage-2.2.15
[dev-util/kdevelop-pg-qt] Add Qt 5 port.

Package-Manager: portage-2.2.15
[dev-util/kdevelop-php-docs] Add KF5 port.

Package-Manager: portage-2.2.15