* [Companion] Qualify all remaining QObject translations with proper class/object names; Centralize some common strings into constants.h.
* [Companion] Replace all instances of some common strings with macros from constants.h.
* [Companion] Fix translation warnings from lupdate.
* Try something for discussions
* Better alternative
* Typo
* Improve
* Change delimiter
* Move delimiter to space
* * Refactoring of CategorizedStorageFormat::load() and CategorizedStorageFormat::save() to support unused model slots
* Fix all unsafe usages of QString::toStdString().c_str()
* Fixed radio data import [Horus] (broken in 0f90ff0b65)
(cherry picked from commit cc12601a01)
* Added Q_OBJECT to TreeModel and some cosmetics
(cherry picked from commit f40e64c2aa)
* Cleanup
