v0.4.0

reworked the distributed clock implementation #20

• transmission delays are now properly computed even with non-linear topologies
• slave offsets to the reference clock is now kept below 100ns
• the DistributedClock object on the master now provide a non-monotonic clock following the reference clock (precision depends on the ethernet and the OS)

v0.3.0

I should have released this in october, but had not time

• added flushing options for the sending buffer
• improved docs
• added distributed clock implementation
• improved ethercat state change functions
• added propagation of all errors coming from the network or from devices
• improved timers precision using timerfd (from 1ms granularity to 1µs)
• improved sendings and receival using async sockets instead of blocking sockets with dedicated threads

v0.2.0

• all futures are now Send
• Config is now Send
• improved docs

v0.1.0

very preivous version, much more feature and few API changes coming