* Add initial support for PHP7
* Update PHP env with now an PSR3 logger (Monolog). Now you can also create a handler function with PSR7 Http message and PSR3 logger in parameter.
* Add examples for PHP7 environement
* For development you can create a function in this path /app/userfuncdev.php it will be loaded
* Switch to alpine base image
* handler now receive an array with request, response and logger object
