Release mega-20180217 Changes in mega-20180217 (since mega-20180214): Bartłomiej Zimoń (1): provide System@Sleep event (#875) ESPEasy release bot (2): automaticly updated release notes for v2.0-20180214 automaticly updated release notes for mega-20180217 Gijs Noorlander (4): [issue 866] Try to stop logging to serial when serial is not read. (#868) [issue #853] Favicon.ico (#874) [OLED Framed] ESP Easy logo (#876) [issue #869] Added 'LWT' to last will topic and improved CPU load (#883)