change color theme to darker blue.

Change color theme to darker blue to better match color identity of the MyAnimeList site and the malforandroid2 app icon.

Here are a couple of screenshots showing the darker blue color theme: 
<a href="https://f.cloud.github.com/assets/459651/1882596/25f84f2a-7978-11e3-85a0-22de424a1b03.png" title="Anime List Screen"><img src="https://f.cloud.github.com/assets/459651/1882596/25f84f2a-7978-11e3-85a0-22de424a1b03.png" alt="Anime list screen using darker blue color theme" width="280px" height="480px"></a> <a href="https://f.cloud.github.com/assets/459651/1882671/4052ae64-7979-11e3-88bd-f9e32b87208e.png" title="Anime Detail Screen"><img src="https://f.cloud.github.com/assets/459651/1882671/4052ae64-7979-11e3-88bd-f9e32b87208e.png" alt="Anime detail screen using darker blue color theme" width="280px" height="480px"></a>

>@riotopsys: I don't know how you feel about the existing color scheme, but from the instant I first saw malforandroid2, I have felt it did not match the color identity of the myanimelist.net site or compliment the applications own icon. I feel this darker blue theme is a much better compliment to the color scheme of the icon and a better match to the color identity of the myanimelist.net website.
>
>I also have some thoughts about how to make the applications icon better fit with the [Android design style guide] (http://developer.android.com/design/style/iconography.html "Iconography | Android Developers").
>Here is sample of one of the designs I've been playing with, please let me know what you think of it: 
>![ic_launcher](https://f.cloud.github.com/assets/459651/1882737/6d4f950c-797a-11e3-919b-bae01c5b7f92.png)