Updated notion to 3.2017050501.

I've just released version 3-2017050501 of Notion.

This is mostly a maintenance release, but some notable changes include:

* Add focuslist menu for workspaces (thanks to @hedning)
* Add sizepolicy support for menus (thanks to @hedning)
* Fix statusd free memory (thanks to @jsbackus)
* Improve error messages for invalid key combinations (thanks to @xmw and
  @knixeur)
* configuration options for warp cursor placement (thanks to Campbell
  Barton)
* include net_client_list in the default configuration
* add Subtle(wm)-like window management to contrib scripts (@gwash)
* add rofi menu support (thanks to @olejorgenb and @hedning)
* various cleanups (thanks to Campbell Barton, Wojtek Aniszewski,
  @jsbackus, Joe Mason, @olejorgenb)

(wiz)