Implemented filtering servers by server's version, related to #27.
This combobox is saved-restored across restarts.
Added forgotten bd04870 server_cvars.go, which is responsible for
showing server's CVars window.
Splitted sidebar's list into two separate lists - one for
general server's info (hostname, players, etc.) and one for
players list.
Also, moved CVars list to separate window which can be shown by
clicking approriate button under player's list.
Players column now have three integers - first is real humans
count, second - bots count, and third - maximum players allowed
on this server. Also, sidebar will show bots count as well.
URTrator will now show information about selected server on
activated tab. E.g. when you switched from "Servers" to
"Favorites", sidebar informational widget will be updated with
server's data for selected server on "Favorites" tab.
Automatically select first added profile on every profiles list
update. Yes, quick hack. In future we will autodetect profiles
based on server version, and profiles combobox will only be
needed for quick connect.
Re-enabled sorting for servers lists, which forces to use devel
version of Go. 1.7.3 have problems with GC and URTrator will
segfault.
Hide offline checkboxes for all servers and favorites now
checked by default.
First implementation of "Sort by server name" algo. Shitty, kinda
unreliable, but better than GTK's default.
Added Colorizer.Clear() func, which clears passed data from
colorcodes.
Fixed name on "Add to favorites" button.
Still cannot be successfully launched until some race conditions
will be fixed in go-gtk.
Fixed Windows build script to install gcc in MSYS2, which is
needed for some dependencies.
Fixed game launching on Windows, now ioq3 will search for game
data in proper directory.
