- postpone the insertion of newly discovered peer devices Id and Ik

+ encryption returns accurate peerDeviceStatus

- detect incoming message from unknown device to warn the user
- get the trust status of sender Device to display it to the user

- crypto primitives exposes only what is really needed by the lib
- tests make direct usage of std::random_device
+ code cleaning: template parameter name consistency

better and more coherent variable and fields names

+ some code cleaning in lime_x3dh_protocol.hpp

- use const_iterator instead of iterator when possible

ben ouais je cherche du taf quoi...

+ tweak OPk and SPk id generation to resist bad
sqlite3 interpretation of unsigned int32

To be completed with
- OPk management

Clean DR session in localStorage
To be completed with:
- generate and upload new SPk to server
- generate and upload new OPks to server

+ more variable name consistency

- bugged(only on gcc-4.9)
- use rowset instead

- test still failing due to server connection issue not fixed yet

- save 4 bytes in DR message header