Fix typo in localization.ini
New startup screen
Add functionality to buttons "continue" and "new game" in the intro page
Unify css rules in a single file
Add images and style to worlist background
Simplify bitmap async creation functions
Use hitArea to avoid security errors

After adding bckground images, the mouse event produce security
errors, because createjs try to read he pixel values to know
where is the mouse. This is solved setting the hitArea property
in _every_ container where we use mouse events.

This patch also resize the wordlist canvas to avoid display a
white space at bottom, the real problem need be solved.
This is a temporary change.
Cloud image would be behind the words