replace Root class with de.polygonal.core.log.LogSystem
(use LogSystem.config object and call LogSystem.init() instead of Root.initLog())
use Arial in TextFieldHandler
fix LogHandler.setFormat(), add LogHandler.getFormat()
simplify Log class
workaround for cpp/android/ios warning:
this decimal constant is unsigned only in ISO C90
use haxe.ds.Vector in Observable
haxe3 fix
goodbye haxe2.x
move resource loader to flash lib
Merge branch 'dev' of github.com:polygonal/core into dev
io -> codec