Add Proguard config for AndroidQuery

[trietbui85]

https://github.com/androidquery/androidquery

[krschultz]

I don't have a project with AndroidQuery in it. Can you try the following configuration?

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}