Adds Eric and Chris to the THANKS file.

Author: arokem

THANKS

@@ -8,7 +8,7 @@ Below is a partial list.  If you've been left off, please let us know
 Tim Blanche
 Matthew Brett
 Christopher Burns
-Michael Castelle 
+Michael Castelle
 Philippe Ciuciu
 Dav Clark
 Yann Cointepas
@@ -20,7 +20,9 @@ Brian Hawthorne
 Paul Ivanov
 Kilian Koepsell
 Tim Leslie
+Eric Larson
 Cindee Madison
+Chris Markiewicz
 Jarrod Millman
 Fernando Perez
 Josef Perktold