revert broken guava change

tangiel · tangiel · commit c8425662bc06 · 2018-07-31T16:50:42.000-07:00
diff --git a/gradle.properties b/gradle.properties
@@ -6,7 +6,7 @@ group=com.google.endpoints
 
 servletVersion=2.5
 javaxinjectVersion=1
-guavaVersion=25.1
+guavaVersion=20.0
 jacksonVersion=2.6.4
 gradleAppenginePluginVersion=1.9.59
 appengineVersion=1.9.60
