Clean up AUTHORS

I removed D. Joe and Jack because I'm not sure what their proper full names are, and each has contributed only tiny non-copyrightable changes anyway (respectively, 36dde83 and e4e07e3).

In other cases, I completed the name as well as I could from GitHub profiles or elsewhere on the Web.

AUTHORS

@@ -10,7 +10,7 @@
 * Konrad Hinsen <[email protected]>
 * Vladimir Gorbunov <[email protected]>
 * John Jacobsen <[email protected]>
-* rogererens <[email protected]>
+* Roger Erens <[email protected]>
 * Thomas Ballinger <[email protected]>
 * Morten Linderud <[email protected]>
 * Guillermo Vayá <[email protected]>
@@ -21,13 +21,11 @@
 * Henrique Carvalho Alves <[email protected]>
 * Joe Hakim Rahme <[email protected]>
 * Kenan Bölükbaşı <[email protected]>
-* Abhishek L <[email protected]>
+* Abhishek Lekshmanan <[email protected]>
 * Christopher Browne <[email protected]>
 * Clinton N. Dreisbach <[email protected]>
-* D. Joe <[email protected]>
 * Duncan McGreggor <[email protected]>
 * E. Anders Lannerback <[email protected]>
-* Jack <[email protected]>
 * Johan Euphrosine <[email protected]>
 * Kevin Zita <[email protected]>
 * Matt Fenwick <[email protected]>
@@ -41,7 +39,7 @@
 * Brian McKenna <[email protected]>
 * Halit Alptekin <[email protected]>
 * Richard Parsons <[email protected]>
-* han semaj <[email protected]>
+* Sangho Na <[email protected]>
 * Ryan Gonzalez <[email protected]>
 * Brendan Curran-Johnson <[email protected]>
 * Ivan Kozik <[email protected]>
@@ -90,7 +88,7 @@
 * Yigong Wang <[email protected]>
 * Oskar Kvist <[email protected]>
 * Brandon T. Willard <[email protected]>
-* Andrew R. M. <[email protected]>
+* Andrew Miller <[email protected]>
 * Tristan de Cacqueray <[email protected]>
 * Sören Tempel <[email protected]>
 * Noah Snelson <[email protected]>