Bump release version.

Bingqin Zhou · Bingqin Zhou · commit 46019b248d44 · 2020-02-26T18:03:27.000-08:00
diff --git a/gradle.properties b/gradle.properties
@@ -1,2 +1,2 @@
 group=com.wepay.kcbq
-version=1.5.2
+version=1.6.0
