Gnome 3.32 compatibility + some filtering options Huge thanks to Adam Schmalhofer for the contributions! Thanks to everyone who tested this version! Changes: * Big refactoring for Gnome 3.32 compatibility. Backwards compatibility with older versions is broken, sorry! * Add an option to disable the sorting by priority (thanks Adam Schmalhofer) * Add an option to hide completed unarchived tasks (thanks Adam Schmalhofer) * Add an option to show tasks above a given priority (thanks Adam Schmalhofer) * Bugfix: couple of warnings solved * Move code to git and gitlab * Move unit tests to jasmine-gjs * Code cleanup