def unload(force = false)
      if name == "ruby" and !force
        Weechat.puts "Won't unload the ruby plugin unless you force it."
        false
      else
        Weechat.exec("/plugin unload #{name}")
        true
      end
    end
def unload(force = false)
      if name == "ruby" and !force
        Weechat.puts "Won't unload the ruby plugin unless you force it."
        false
      else
        Weechat.exec("/plugin unload #{name}")
        true
      end
    end
Unloads the plugin.

 @param [Boolean] force If the plugin to be unloaded is "ruby",
   +force+ has to be true.
 @return [Boolean] true if we attempted to unload the plugin