slop-4.2.19-bp153.1.16

- Update to 4.2.19, announce message is here:
    https://github.com/naelstrof/slop/releases/tag/v4.2.19

- Update to 4.2.18, announce message is here:
    https://github.com/naelstrof/slop/releases

- Update to 4.2.17, announce message is here:
    https://github.com/naelstrof/slop/releases/tag/v4.2.17
- Remove BuildRequires for pkgconfig(xext)
- Add BuildRequires for glm-devel, pkgconfig(gl), pkgconfig(glew),
  pkgconfig(glu), pkgconfig(imlib2) and pkgconfig(xrandr)

- Remove v3.1.5.tar.gz, forgotten in previous commit

- Update to 4.1.16, announce message:
  Added opacity capabilities. --color now checks for an alpha value,
  but it's optional.
  Added new option --highlight. Which instead of drawing a border around
  the selection, it draws over the selection. Best used with --color
  with an alpha set below 1.
  Added option --minimumsize and --maximumsize, setting them both to
  the same value disables drag selections.
  Slop windows now let all events fall through.
  Incredibly improved rendering quality and speed, no longer do I
  re-size or move windows around. For some reason that's really
    expensive in X11...
  Slop now outputs the ID of a selected window if any.
  Minor bugfixes and adjustments.
- Change Source0 Web URL, to have right slop-4.1.16.tar.gz
- Add BuildRequires for cmake and gengetopt
- Add BuildRoot
- Use %{name} instead of maim
- Add Documentation
- Add %changelog

- slop-3.1.5

- slop-3.1.4