[#2992] Prevent editor from being closed by dragging/resizing/droppable/contenteditable if already opened for current track event
updated instructions for running butter on windows
[#2965] Preview/View Source buttons in share editor should be disabled in unsaved state.

Added tooltips to notify user
Bug 3010 - Fix Soundcloud media not loading
No Bug - Fix lint error that only Travis CI can see
[#2957] Upgrade to jshint 0.9.1 and fixed all lint errors from doing so
fix: Keyboard Avoid Elements Inputs
Fix: Switching between the different quizzes
Temporary solution: Hide default video container
Añadimos plugin mVideo
Merge branch 'master' of https://github.com/mozilla/butter