Added a "learn how to play button", a css class, and load the game locally

Added "learn how to play" in translations.go
Put the game listing render call into home_page.js
Added the "jqmText" class to common.css, to be used for incorporating
plain text into the app. (just centering it for now)
Put some welcome text into home_page.html,
Added said welcome text into translations.go as well.