Android UX update

Android UX updates based on [AGPUSH-775](https://issues.jboss.org/browse/AGPUSH-775)

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| ![splash](https://cloud.githubusercontent.com/assets/13337/5165847/23eb90f8-73d1-11e4-9bd8-9867088cdd61.png) | ![registering](https://cloud.githubusercontent.com/assets/13337/5165858/3d5f70e0-73d1-11e4-8a32-ad2b95435234.png) | ![no message](https://cloud.githubusercontent.com/assets/13337/5165856/3d5b862e-73d1-11e4-84a6-96ea16f94313.png) | ![messages](https://cloud.githubusercontent.com/assets/13337/5165857/3d5dd032-73d1-11e4-85e2-c7b75dfb1cdb.png) |