proguard: preserve ezvcard

Change-Id: Ib2bda59478dfd5f43a4ac18fb3a9ab137b2b7209

ring-android/app/build.gradle

@@ -8,8 +8,8 @@ android {
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 164
-        versionName "20190525-6"
+        versionCode 165
+        versionName "20190525-7"
     }
 
     sourceSets {

ring-android/app/proguard-rules.pro

@@ -36,14 +36,8 @@
 -dontwarn freemarker.**
 
 # EZVcard
--dontwarn ezvcard.io.json.**
--keep,includedescriptorclasses class ezvcard.io.json.JCardModule { *; }
--keepclassmembers class ezvcard.io.json.JCardModule { *; }
--keep,includedescriptorclasses enum ezvcard.io.json.JCardModule { *; }
--keepclassmembers enum ezvcard.io.json.JCardModule { *; }
--keep,includedescriptorclasses interface ezvcard.io.json.JCardModule { *; }
--keepclassmembers interface ezvcard.io.json.JCardModule { *; }
--keep class ezvcard.property.** { *; }
+-keep,includedescriptorclasses class ezvcard.** { *; }
+-keepclassmembers class ezvcard.** { *; }
 
 # barcodescanner
 -keep,includedescriptorclasses class com.journeyapps.barcodescanner.** { *; }