[libvirt] ANNOUNCE: virt-manager 1.4.0 released

[Cole Robinson]

I'm happy to announce the release of virt-manager 1.4.0!

virt-manager is a desktop application for managing KVM, Xen, and LXC
virtualization via libvirt.

The release can be downloaded from:

http://virt-manager.org/download/

This release includes:

- virt-manager: spice GL console support (Marc-André Lureau, Cole Robinson)
  - Note, this isn't enabled by default, and there isn't any GUI bits to
    enable this, but if it _is_ enabled the virt-manager SPICE viewer will
    do the right thing. More details:
    http://blog.wikichoon.com/2016/05/spice-openglvirgl-acceleration-on.html
- Bump gtk and pygobject deps to 3.14
- virt-manager: add checkbox to forget keyring password (Pavel Hrdina)
- cli: add --graphics gl= (Marc-André Lureau)
- cli: add --video accel3d= (Marc-André Lureau)
- cli: add --graphics listen=none (Marc-André Lureau)
- cli: add --transient flag (Richard W.M. Jones)
- cli: --features gic= support, and set a default for it (Pavel Hrdina)
- cli: Expose --video heads, ram, vram, vgamem
- cli: add --graphics listen=socket
- cli: add device address.type/address.bus/...
- cli: add --disk seclabelX.model (and .label, .relabel)
- cli: add -cpu cellX.id (and .cpus, and .memory)
- cli: add --network rom_bar= and rom_file=
- cli: add --disk backing_format=
- Many bug fixes and improvements

Thanks to everyone who has contributed to this release through testing,
bug reporting, submitting patches, and otherwise sending in feedback!

Thanks,
Cole