Issue #3427: remove all of old event handler and dispatcher from build.xml and project.json
Merge pull request #336 from dingpinglv/Iss3427_NewEventDispatcher

Issue #3427: remove all of old event handler and dispatcher from build.xml and project.json
Merge pull request #337 from pandamicro/tests_js_3.0

Refactor #4125: Apply texture getter/setter in samples and bug fixes