Add target for generating AUTHORS file

Author: andreastt

.OLD_AUTHORS

@@ -0,0 +1,20 @@
+Joe Walnes
+Vyvyan Codd
+Zoltar - Knower of All
+Carlos Villela
+James Cooper
+Malcolm Rowe
+Mirko Nasato
+Marc Guillemot
+Alexis Vuillemin
+Noel Gordon
+David Wang
+Amitabh Saikia
+Jon Spalding
+James Strachen
+Rune Flobakk
+Michele Sama
+Muthu Kannan
+Terence Haddock
+Jean-Francois Roche
+Godefroid Chapelle

.mailmap

@@ -1,2 +1,36 @@
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <[email protected]>
+<[email protected]> <nirvdrum@[email protected]>
+<[email protected]> <[email protected]>
 Andreas Tolfsen <[email protected]> <[email protected]>
-Andreas Tolfsen <[email protected]> Andreas Tolf Tolfsen
+Andreas Tolfsen <[email protected]> Andreas Tolf Tolfsen
+Aslak Hellesøy <[email protected]> Aslak Hellesoy
+Chethana Paniyadi <[email protected]> CHETANA PANIYADI
+Daniel Davison <[email protected]> ddavison
+David Burns <[email protected]> Davis Burns
+Eran Messeri <[email protected]> Eran Mes
+Haw-bin Chai <[email protected]> [email protected]
+Ivan De Marino <[email protected]> IvanDeMarino
+Jason Lebya <[email protected]> Jason Leyba
+Jim Evans <[email protected]> Jim
+Leo Laskin <[email protected]> Leo [email protected]
+Luke Inman-Semerau <[email protected]> Luke Semerau
+Paul Hammant <[email protected]> <[email protected]>
+Pydi Chandra <[email protected]> pydi.chandra
+Samit Badle <[email protected]> [email protected]
+Seva Lotoshnikov <[email protected]> <[email protected]>
+Simon Stewart <[email protected]> <[email protected]>
+Simon Stewart <[email protected]> Simon M Stewart
+Stuart Knightly <[email protected]>