[Qt-creator] Qt Creator 4.15 in string freeze

[Eike Ziller]

With the Qt Creator 4.15 beta2 released, we also go into string freeze with 4.15 now. This includes UI freeze and soft API freeze as well.

https://wiki.qt.io/Qt_Creator_Releases
https://wiki.qt.io/Qt_Creator_Submission_Policies

Br, Eike

-- 
Eike Ziller
Principal Software Engineer

The Qt Company GmbH
Erich-Thilo-Straße 10
D-12489 Berlin
eike.ziller at qt.io
http://qt.io
Geschäftsführer: Mika Pälsi,
Juha Varelius, Jouni Lintunen
Sitz der Gesellschaft: Berlin, Registergericht: Amtsgericht Charlottenburg, HRB 144331 B