Fails with no internet connection

[ElnuDev]

xborders' version checking code currently fails and crashes the program if there's no internet connection, unless the --disable-version-warning flag is set. The update-checking code should just exit if there's no internet.

[knoxell]

I can't reproduce this

$ killall xborders
$ nmcli networking off

$ xborders
/home/knoxcell/.local/bin/xborders:285: DeprecationWarning: Gtk.Window.set_wmclass is deprecated
  self.set_wmclass("xborders", "xborder")

I get the 'xborders couldn't get latest version' Error notification and xborders runs normally.