instead of implementing __tostring, set __name
use variable name 'params' instead of 'o'
use 'self' for indicating instance instead of 'this'
move private members under self instead of params
set doc type of 'params' as the object created (helps IDE autocomplete)
added Screen middle-class to titlescreen/
added BootScreen implementation
added "missing" input enums to globals
PageView no longer requires a rootPage on construction
added a mouse handler to Page
ModeSelectPage no longer starts playing audio and animations on construction