Removed unused KeyStoreManager

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>
Started Javadoc extension

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>
Integrated BouncyCastle version 1.49

https://github.com/jcryptool/core/issues/60

Signed-off-by: Dominik Schadow <dominikschadow@googlemail.com>