Bump version to 0.76-SNAPSHOT

Change-Id: Ia3a2a7d23ce7870c831302c496f9d25594cf4940
diff --git a/Changes b/Changes
index 85bd445..2011974 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,5 @@
+# version 0.76-SNAPSHOT
+
 # version 0.75
 
 - Alter role and remove privilege database tables (#763)