[Download] Fixed loading of stylesheet for combobox
[Download] Changed order of loading for scene
[Download] First working version of building a single jar
[Common] Improved configuration system
[Download] Setup for building on server

Removed old useless files
Fixed logging initialization
[Download] Trying to fix server build
[Download] Disable binary css creation
[Download] Fixed dependencies of downloader
Infer Nullity
[Download] Added uninstall button