Reorder authors in first-commit order

AUTHORS

@@ -1,19 +1,28 @@
-Qinglei Cao
-Yu Pei
-Reazul Hoque
-Chongxiao Cao
-David Eberius
-Wei Wu
-Stephen Richmond
+AUTHORS (in order of first contribution)
+========================================
+
+George Bosilca
 Thomas Herault
 Aurelien Bouteiller
+Pierre Lemarinier
 Anthony Danalis
-George Bosilca
+Narapat Saengpatsa
 Mathieu Faverge
 Stephanie Moreaud
 Peter Gaultney
+Reazul Hoque
 Damien Genet
+David Eberius
 Amina Guermouche
+Eduard Valeyev
+Yu Pei
+Qinglei Cao
+Joseph Schuchart
+Omri Mor
 Nuria Losada
+Florent Lopez
+Daniel Mishler
+Joseph John
+Brieuc Nicolas
 
 and many others.