Add a few people I missed

CONTRIBUTORS.markdown

@@ -3,31 +3,45 @@ Contributions
 
 Many people have contributed to Pysolar since its inception.
 
-Thanks to:
+Alphabetically by last name, thanks to:
 
-* Elliot Lee (elliotclee)
+* Mike Borsetti (mborsetti)
 * Lawrence d'Oliveiro (ldo)
 * Naz Gassiep (mrnaz)
+* J Gehman (rm-minus-r-star)
 * Sean T. Hammond (seanth)
 * Will Hardy
-* Poul-Henning Kamp
+* Jessica Haskins (jhaskinsPhD)
+* Johan Heikkilä (hevanaa) 
 * David V. Hill
+* Poul-Henning Kamp
 * PJ Kundert
 * Lahmeyer International
+* Juan Luis Leal Contreras (Keunlun)
+* Elliot Lee (elliotclee)
 * Jon Little
+* Johannes Maron (codingjoe)
+* Will McNaughton (obsoletesystm)
+* Duncan McPherson (duncandoo)
 * Tim Michelsen
 * Mark J. Nelson (anadrome)
 * Simeon Obinna Nwaogaidu
 * Brent Pedersen
 * David Perez-Suarez (DPSHelio)
+* JuanPotato
+* Christoph Rackwitz (crackwitz)
+* raghu1121
+* François Rejeté (w00kie)
 * Francois Rogez
+* bfrobin446
 * Arnaldo Russo
+* Deepankar Sharma (cquark7)
 * Sean Taylor
+* Dieter Vansteenwegen
 * Andrew Benedict Wallace
 * Robin Wilson
 * Pietro Zambelli
 * Holger Zebner
-* Mike Borsetti
 
 for their contributions of code, bugfixes, documentation, and general encouragement.