Django Task Manager Web App

I Need a task manager with the following features: Responsive Internationalized : Translate without need to re-deploy Login/Register via Google ID Task Fields: Title, Description, Context, State, Starred, Start Time, End time, Due Date, Priority, Assigned to Contact List (add by email) Contact Groups Task Lists Sharing Task Lists to Groups and individual Contacts Task Authorization Type Sharing inheritance at creation but can be modified. IE: List, remove sharing Views (grouping): Inbox, Assigned to, Due, Projects/Lists, Context, Status, Today, Calendar On Lists order by: due date, date added, priority, Alphabetic, assigned Filter: Status, Assigned, Due, Starred, Added By Comments Share levels: View/ comment, complete/ Assign, Modify, Todo Notifications table