Initial release of the SafeCloud platform

Summary
This deliverable consists of the software developed in T4.2, T4.3 and T4.4 so far. It provides a release of SafeCloud API targeted towards a single cloud provider and without support for elasticity requirements. It offers a restricted set of novel multi-party computation protocols for use by the Sharemind applications. It features the integration of Secure Key Value Store and Sharemind, and the ability to access the former through a SafeCloud library by applications deployed on Sharemind.