Set release date.

Murray S. Kucherawy · Murray S. Kucherawy · commit 954348371e06 · 2017-12-06T11:12:22.000-08:00
diff --git a/RELEASE_NOTES b/RELEASE_NOTES
@@ -3,5 +3,5 @@
 This listing shows the versions of the OpenARC package, the date of
 release, and a summary of the changes in that release.
 
-0.1.0		2016/04/01
-	Initial early release.
+0.1.0		2017/12/06
+	Initial pre-release.
