starting new versioning for beta builds, only show changelog on release builds

AndroidManifest.xml

@@ -17,7 +17,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.thialfihar.android.apg"
-    android:versionCode="21" android:versionName="1.0.7">
+    android:versionCode="10800" android:versionName="1.0.8 beta 00">
 
     <application
         android:icon="@drawable/icon"

src/org/thialfihar/android/apg/Apg.java

@@ -1959,6 +1959,20 @@ public class Apg {
         return nlBytes;
     }
 
+    public static boolean isReleaseVersion(Context context) {
+        try {
+            PackageInfo pi = context.getPackageManager().getPackageInfo(mApgPackageName, 0);
+            if (pi.versionCode % 100 == 99) {
+                return true;
+            } else {
+                return false;
+            }
+        } catch (NameNotFoundException e) {
+            // unpossible!
+            return false;
+        }
+    }
+
     public static String getVersion(Context context) {
         if (VERSION != null) {
             return VERSION;

src/org/thialfihar/android/apg/MainActivity.java

@@ -126,7 +126,7 @@ public class MainActivity extends BaseActivity {
             showDialog(Id.dialog.help);
         }
 
-        if (!mPreferences.hasSeenChangeLog(Apg.getVersion(this))) {
+        if (Apg.isReleaseVersion(this) && !mPreferences.hasSeenChangeLog(Apg.getVersion(this))) {
             showDialog(Id.dialog.change_log);
         }
     }