refactoring including: * introduction of network engine (Simon Désaulniers) * api change: internal Dht structures moved to dht namespace * crypto: added argon2 for key stretching * python: benchmark improvements and many bug fixes
refactoring including: * introduction of network engine (Simon Désaulniers) * api change: internal Dht structures moved to dht namespace * crypto: added argon2 for key stretching * python: benchmark improvements and many bug fixes