which made it pretty to get page instances (ewww '.__name')
from now page implementations use the PageManager to get page instances
SplashPage fading improvements
TitlePage implementation
replace viewHandler calls from page implementations with 'self:onInvalidation()'
fixed ListField focus implementation
fixed SelfTestField crash
MainMenuPage and subpages implementation
moved json.lua into common
renamed common.lua to util.lua
moved stopMusic() into common/sound.lua
moved numbers.lua into components
removed unused shared directory
removed unused settingswheel.lua