correctly handles apk's with one package named "android"

CHANGES

@@ -29,6 +29,7 @@ v2.0.0 (TBA)
 -Fixed (issue #550) - Correctly labels incorrect type handling of <array>
 -Fixed (issue #571) - Fixed truncated strings (Thanks jtmuhone)
 -Fixed (issue #578) - Fixed apk's with multiple empty types via ignoring them
+-Fixed (issue #589) - Fixed apk's with one package named "android" from improper decoding.
 -Added output to list Apktool version to help debugging.
 -Updated known bytes for configurations to 38 (from addition of layout direction)
 -Fixed NPE when handling odex apks even with --no-src specified. (Thanks Rodrigo Chiossi)

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTable.java

@@ -87,7 +87,8 @@ public class ResTable {
                 id = resPackage.getId();
             }
         }
-        return getPackage(id);
+        // if id is still 0, we only have one pkgId which is "android" -> 1
+        return (id == 0) ? getPackage(1) : getPackage(id);
     }
 
 	public ResPackage getPackage(String name) throws AndrolibException {