GL packaging refactor

Change-Id: I1d7a95c4f0b91a5ba59030d57cf6865c11b497aa
diff --git a/proguard.flags b/proguard.flags
index 8d60103..b54b0c7 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -55,3 +55,7 @@
 # Required for mp4parser
 -keep public class * implements com.coremedia.iso.boxes.Box
 
+#-assumenosideeffects junit.framework.Assert {
+#*;
+#}
+