v0.4.3a: clarified proguard rules

core/proguard-rules.pro

@@ -1,22 +1,4 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in C:\Program Files (x86)\Android\android-sdk/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
--dontwarn **
+# retain these to support reflection and meaningful stack traces
 -keep class com.shatteredpixel.** { *; }
 -keep class com.watabou.** { *; }
 -keepattributes SourceFile,LineNumberTable