Ubuntu 16.04 uWebSockets fix

[subodh-malgonde]

A student reported that he gets this error when he tries to compile the project after running ./install-ubuntu.sh.

/usr/include/uWS/Group.h:69:10: note: no known conversion for argument 1 from ‘main()::<lambda(uWS::WebSocket, char*, size_t, uWS::OpCode)>’ to ‘std::function<void(uWS::WebSocket, char, long unsigned int, uWS::OpCode)>

The fix, apparently, is to change pass by value references ie w to pointers that pass by address *w. And if you are using a member such as .send you should wrap the pointer ie (*w).send.

[domluna]

@subodh-malgonde In v0.14 of uWebSockets some function signatures have changed. If uWebSockets is checked out to the commit here the installation should work fine.

udacity/CarND-MPC-Project#3 also had a similar issue. It's a small change either way but I'll add something to the README regarding this.

[baumanab]

Closed as uWebsockets version information has been added.