preview 3

• rework of checkReset() and showPresence() - Hub is much more reliable now and it saves ~120 byte space
• faster CRC16 (ds2450 and ds2408 and ds2423), still potential left if there are remaining timing-problems
• refactored the interface: hub.poll() replaces hub.waitForRequest()

preview 2

this release brings reduced ram usage, less bugs, more sensors and functionality (see readme.md)

make hub more versatile

0.2.1

repair example