This is the development branch for the next upcoming release (2.0.0). This is also known as ESPEasyMega.
Check here to learn how to use branch and help us improving ESPEasy: http://www.letscontrolit.com/wiki/index.php/ESPEasy#Source_code_development
Binary development releases are here: https://github.com/letscontrolit/ESPEasy/releases
Details and discussion are on the Experimental forum: http://www.letscontrolit.com/forum/viewtopic.php?f=18&t=2257&p=13600#p13600