- Update version to 5.4.1
* Remove qt5multimedia
* add DApplication::globalApplication
* Fix bugs

- Update version to 5.2.2.13
* Support Qt 5.15, drop dtkwidget-qt-5_15.patch
* Fix bugs
* Add some widgets
* Update translations

- Update version to 5.2.0
* Switch to LGPLv3 license
* Fix bug18561,press 'F1' can't open help window while open two
dde-file-manager windows
* Fix bug-18362 DTabBar move tab failed
* Fix bug-18903, settingsDialog adjust scrollArea right margin
* Fix bug-20975 DSettingsDialog with DButtonBox reset crash
* Disabled DlineEdit show context menu
* And fix many other bugs
* Update many apis