Uniz

Invalid date

1. Adaptive to new models of printers: SLASH OL/SLASH PLUS UDP/SLASH PRO OL/SLASH PRO/SLASH PRO UDP/SLASH DJ2/SLASH J UDP.
Please note that SLASH DJ2/SLASH J UDP does not support printing with online slice
2. Added uploaded model management function
3. Support users to activate the printer.
4. Support users to upgrade the printer firmware.
5. Support users to upgrade the printer license.
6. Added Spanish to language settings
7. Updated parts of the UI
8. Fixed some bugs