Fedora 22 Alpha release announcement

[Jaroslav Reznik]

Hey everyone!
As Fedora 22 Alpha is coming, the readiness meeting is this week, I'd like
to have draft release announcement draft written prior the meeting, sooner
than later (even there's still possibility of Alpha delays).

Crossposting so this email finds the right people to provide the content :).

As always, place to coordinate/write announcement is at:
https://fedoraproject.org/wiki/F22_Alpha_release_announcement

It's basic template based on F21 Alpha announcement.

Thanks
Jaroslav