New project: echoplexus #100

* logo from https://github.com/qq99/echoplexus/blob/master/assets/echoplexus-logo.png resized to 130×130 and centered in 160×160
* license from https://github.com/qq99/echoplexus/blob/master/LICENSE
* introduction from https://github.com/qq99/echoplexus/blob/master/README.md (excerpt)

Echoplex is too good to wait for someone to do this in some months (even not sure), so here’s it! 
Ok, I don’t have any better idea either. Certain things just can’t be described in an unbiased way with just one word. It’s like a collection of web apps using WebRTC, but otherwise not clearly related to eachother.