Refactored the way URTrator working with profiles - now everything
that could be taken from internal cache will be taken from cache.
The very same as with servers.
Moved all callbacks from callbacks to events, so we achieve full
asynchronity here and can launch anything in goroutines :).
Moved MainWindow-related game launching functions into another
file (mainwindow_launch.go).
Made quick connect widget working. Note, that even if you're on
Favorites and trying to connect to one of favorited servers but
with quick connect - you still have to choose right profile
near Launch button!
Maybe something else I forget.
Fixed favorites servers - they now correctly added/removed in/from cache,
and also fixed favorite server edition dialog, which now also takes
advantage from server's cache.
Added new toolbar button for updating one server. It works :).
Added new column in servers lists, which shows is server is private or public.
Adding a favorite server now requires created valid profile. It will
not allow to create favorite server without proper profile.
Fixed servers updating database, now they put all fields there.
Added stubs for players info and extended server config things in
database.
Favorites functionality done, except editing favorite server.
Note, that game profile defined for favorite server have
higher priority on normal profile selected in combobox near
"Launch!" button. Later WILL be ignored.
Bunch of fixes is added.
