Add mailmap for better "git shortlog -nse"

ctrueden · ctrueden · commit 976187f36d8b · 2015-11-19T23:28:27.000-06:00
diff --git a/.mailmap b/.mailmap
@@ -0,0 +1 @@
+Wayne Rasband <wsr@nih.gov> <rasband@gmail.com>

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Wayne Rasband <[email protected]> <[email protected]>`