Register activity launch

Register activity launch from login activity
Login and Register Views

Add User Model, Login and register views and presenters.
Added RandoLib Project

Добавил rando library
Интегрировал Login и Register
Add tabs

Add tabs:
My Rando Tab
Top Randos
Rando Message
Merge pull request #17 from smart-software/RandoApp

Main view. Approve (одна ошибка. MainActivity должен наследоваться от TabActivity).