2.2. Level 1: Device can handle recurrence rules (i.e. supports RRULE)

If a mobile device allows a user to create a repeating event then it should support the following recurrence patterns:

1. Daily, Weekly, Monthly by date, Yearly

2. Plus: Monthly by day

3. Plus: Weekdays

4. Plus: Repeating every n weeks

These repeating events should be sent to the server using RRULE accordingly and the client should be able to accept these same `RRULE`s coming from the server.