Added events to elm version

[flip111]

added events in the elm code, unfortunately for the window.onClick i had to use ports
https://stackoverflow.com/questions/39652083/how-can-i-add-event-handlers-to-the-body-element-in-elm

which breaks elm-reactor
elm-lang/elm-reactor#36

now the javascript file should be created with
elm-make main.elm --output main.js

[flip111]

If you want to put main.js through the google closure compiler then use --assume_function_wrapper while building and put closure compiler in SIMPLE mode (there are issues with ADVANCED mode)

java -jar closure-compiler.jar -O SIMPLE --assume_function_wrapper --js main.js > /tmp/main.js && mv /tmp/main.js main.js