Move to AAF 2.1.8-SNAPSHOT

Issue-ID: AAF-621
Change-Id: Ie8b33f7adb5a2958066384b93e24357158adf083
Signed-off-by: Instrumental <jonathan.gathman@att.com>
diff --git a/version.properties b/version.properties
index 306bccf..26d6bcf 100644
--- a/version.properties
+++ b/version.properties
@@ -25,7 +25,7 @@
 
 major=2
 minor=1
-patch=7
+patch=8
 
 base_version=${major}.${minor}.${patch}