edit visualization page
Merge pull request #39 from npphuongthanh/feature/add_admin_quiz

add admin quiz #1
Merge pull request #40 from nguyenngochan/feature/edit_visualization_page#3

edit visualization page
Fix practice module
Merge branch 'develop' of https://github.com/EasyLearnCode/easylearncode into develop
Fix reKey
Fix field date, add filed code
Remove test code filed
Remove interval when scope destroy
Refactor code in learn module, fix not update time in video
Fix style learn page, add angular social
add angular social
Remove console log
Fix interval
Update gplus -cm when location change
Update gplus -cm when location change
Remove thumbs.db
Remove $scope.$apply
Fix current_title
edit visualization page and add libary angular tree view