Now showing context menu for whole subject card instead of only its name.
Adding nineoldandroids library for creating backward compatible
animations. Also removing *.iml files from .gitignore since we should
share them for project settings (like src folders, etc)
Adding an animation for showing and hiding the "confirm" checkbox.
Animating the new subject in when the user adds a new one to the list.
Adding animation for when the subject is deleted from the list.