setting_treeview: move SettingStore out of here.
setting_treeview: move SettingStore out of here.

Settings were only loaded after the settings dialog was opened. That
of course, will not due. SettingsStore now created in the MainWindow
and passed along to who ever needs it.

Meticulus/tactical,Meticulus/tactical,Meticulus/tacticalProxy,Meticulus/tactical,Meticulus/tactical