[Bug 709328] Review Request: psi-plus - Jabber client based on Qt

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=709328

--- Comment #112 from Raphael Groner  ---
Additional Hints:

- Qt4 development is going to be discontinued with Qt 4.8.7 as the final
release:
https://blog.qt.io/blog/2015/05/26/qt-4-8-7-released/

- Theres a suggestion to use optipng:
https://github.com/psi-im/psi/pull/181