diff --git a/.gitignore b/.gitignore
index 736b08021..fe0412ad0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,5 @@
-.gradle
 .idea
 *.iml
+.gradle
 build/
-out/
-proguard_logs/
 *.apk
-*~
-.DS_Store
-.metadata
-gen
-local.properties
diff --git a/actionbarsherlock/proguard.cfg b/actionbarsherlock/proguard.cfg
deleted file mode 100644
index b1cdf17b5..000000000
--- a/actionbarsherlock/proguard.cfg
+++ /dev/null
@@ -1,40 +0,0 @@
--optimizationpasses 5
--dontusemixedcaseclassnames
--dontskipnonpubliclibraryclasses
--dontpreverify
--verbose
--optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.BroadcastReceiver
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
--keep public class com.android.vending.licensing.ILicensingService
-
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet);
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet, int);
-}
-
--keepclassmembers class * extends android.app.Activity {
-   public void *(android.view.View);
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keep class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator *;
-}
diff --git a/android-aac-enc/proguard.cfg b/android-aac-enc/proguard.cfg
deleted file mode 100644
index b1cdf17b5..000000000
--- a/android-aac-enc/proguard.cfg
+++ /dev/null
@@ -1,40 +0,0 @@
--optimizationpasses 5
--dontusemixedcaseclassnames
--dontskipnonpubliclibraryclasses
--dontpreverify
--verbose
--optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.BroadcastReceiver
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
--keep public class com.android.vending.licensing.ILicensingService
-
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet);
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet, int);
-}
-
--keepclassmembers class * extends android.app.Activity {
-   public void *(android.view.View);
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keep class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator *;
-}
diff --git a/api/proguard.cfg b/api/proguard.cfg
deleted file mode 100644
index b1cdf17b5..000000000
--- a/api/proguard.cfg
+++ /dev/null
@@ -1,40 +0,0 @@
--optimizationpasses 5
--dontusemixedcaseclassnames
--dontskipnonpubliclibraryclasses
--dontpreverify
--verbose
--optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.BroadcastReceiver
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
--keep public class com.android.vending.licensing.ILicensingService
-
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet);
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet, int);
-}
-
--keepclassmembers class * extends android.app.Activity {
-   public void *(android.view.View);
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keep class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator *;
-}
diff --git a/astrid/build.gradle b/astrid/build.gradle
index 0ba875b9d..4f89c92ac 100644
--- a/astrid/build.gradle
+++ b/astrid/build.gradle
@@ -21,6 +21,14 @@ android {
         minSdkVersion 7
         targetSdkVersion 17
     }
+
+    buildTypes {
+        release {
+            runProguard true
+            proguardFile 'proguard.cfg'
+            proguardFile getDefaultProguardFile('proguard-android.txt')
+        }
+    }
 }
 
 dependencies {
diff --git a/greendroid/proguard.cfg b/greendroid/proguard.cfg
deleted file mode 100644
index b1cdf17b5..000000000
--- a/greendroid/proguard.cfg
+++ /dev/null
@@ -1,40 +0,0 @@
--optimizationpasses 5
--dontusemixedcaseclassnames
--dontskipnonpubliclibraryclasses
--dontpreverify
--verbose
--optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.BroadcastReceiver
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
--keep public class com.android.vending.licensing.ILicensingService
-
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet);
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet, int);
-}
-
--keepclassmembers class * extends android.app.Activity {
-   public void *(android.view.View);
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keep class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator *;
-}
diff --git a/tests-sync/proguard.cfg b/tests-sync/proguard.cfg
deleted file mode 100644
index b1cdf17b5..000000000
--- a/tests-sync/proguard.cfg
+++ /dev/null
@@ -1,40 +0,0 @@
--optimizationpasses 5
--dontusemixedcaseclassnames
--dontskipnonpubliclibraryclasses
--dontpreverify
--verbose
--optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.BroadcastReceiver
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
--keep public class com.android.vending.licensing.ILicensingService
-
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet);
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet, int);
-}
-
--keepclassmembers class * extends android.app.Activity {
-   public void *(android.view.View);
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keep class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator *;
-}
diff --git a/tests/proguard.cfg b/tests/proguard.cfg
deleted file mode 100644
index b1cdf17b5..000000000
--- a/tests/proguard.cfg
+++ /dev/null
@@ -1,40 +0,0 @@
--optimizationpasses 5
--dontusemixedcaseclassnames
--dontskipnonpubliclibraryclasses
--dontpreverify
--verbose
--optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-
--keep public class * extends android.app.Activity
--keep public class * extends android.app.Application
--keep public class * extends android.app.Service
--keep public class * extends android.content.BroadcastReceiver
--keep public class * extends android.content.ContentProvider
--keep public class * extends android.app.backup.BackupAgentHelper
--keep public class * extends android.preference.Preference
--keep public class com.android.vending.licensing.ILicensingService
-
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet);
-}
-
--keepclasseswithmembers class * {
-    public <init>(android.content.Context, android.util.AttributeSet, int);
-}
-
--keepclassmembers class * extends android.app.Activity {
-   public void *(android.view.View);
-}
-
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keep class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator *;
-}