Removed debug prints, as we don't really need them now.
Fixed database updating from cache, until now only inserts was working
fine, updates failing. All because of forgotten comma :(.
Reworked handling of icons in servers lists, now they didn't
recreated, but reused from created on application start. Can also
save us much memory for long runs.
Moved gamemode detector to mainwindow_helpers, where it should be.
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.
Fixed players parsing in server's response, now we can show 0 players.
Showr info (kinda) completed, general server info, players and vars
are here. Some work on sorting is in ToDo.
On servers updating when all data successfully gathered we're now
properly updating rows in Servers and Favorites lists.
Increased "simultaneous ping limit" for now, but anyway it provides
too bad results. Need to find a way to fix it.
Now we have pooler which will pool connections (like pinging),
so there will be no timeouts due to "we have launched 100000 goroutines".
Reworked all code to use events (see Eventer). Still more work about
this to go.
Maybe more fixes I forgot.
