Fix release build

app/build.gradle

@@ -95,7 +95,7 @@ android {
         release {
             resValue "string", "provider_authority", "de.danoeh.antennapod.provider"
             minifyEnabled true
-            proguardFile "proguard.cfg"
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), "proguard.cfg"
             signingConfig signingConfigs.releaseConfig
             buildConfigField STRING, FLATTR_APP_KEY, mFlattrAppKey
             buildConfigField STRING, FLATTR_APP_SECRET, mFlattrAppSecret

app/proguard.cfg

@@ -53,8 +53,12 @@
     public *;
 }
 
+# for okhttp
 -dontwarn okhttp3.**
 -dontwarn okio.**
+-dontwarn javax.annotation.**
+-keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase
+-dontwarn org.codehaus.mojo.animal_sniffer.*
 
 # for RxJava:
 -dontwarn sun.misc.Unsafe
@@ -99,10 +103,12 @@
 
 # Glide
 -keep public class * implements com.bumptech.glide.module.GlideModule
--keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
-    **[] $VALUES;
-    public *;
+-keep public class * extends com.bumptech.glide.module.AppGlideModule
+-keep public enum com.bumptech.glide.load.ImageHeaderParser$** {
+  **[] $VALUES;
+  public *;
 }
+-dontwarn com.bumptech.glide.load.resource.bitmap.VideoDecoder
 
 # for ViewPageIndicator problems (https://github.com/JakeWharton/ViewPagerIndicator/issues/366):
 -dontwarn com.viewpagerindicator.LinePageIndicator