Typo fixed: "to abstracts" -> "to abstract"
update site with info about angular 1.0.3 and 1.1.1
fix header links
Fix Firefox Issue with not being able to click buttons
Fix "Back to top" link

Add target, so that it's not intercepted by $location service.
add playswith doc
update header
remove job posting
update version to 1.0.4 and 1.1.2
1.0.4적용 버젼과 합쳤음...