1.0.5 update to bouncy castle 1.50

This release updates the dependency of the BouncyCastle library to 1.50 that is the final release after the OpenSSL heart bleed bug. This update was prepared to use the newest version and to eliminate the concerns. Note that the application does not use the part of the API that was vulnerable and is known at this moment, if there was any.

Unit tests were extended also and a bit formed to the style I believe is more readable than the style that was used before.