Add AUTHORS to EXTRA_DIST.
Add AUTHORS to EXTRA_DIST.

kinetiknz/nestegg,fallaciousreasoning/nestegg,fallaciousreasoning/nestegg,SingingTree/nestegg,SingingTree/nestegg,kinetiknz/nestegg,bit/nestegg,SingingTree/nestegg,kinetiknz/nestegg,bit/nestegg