Add more detail into the release notes for 1.1.0
Add more detail into the release notes for 1.1.0

linux2400/django-recurrence,linux2400/django-recurrence,FrankSalad/django-recurrence,django-recurrence/django-recurrence,FrankSalad/django-recurrence,django-recurrence/django-recurrence,Nikola-K/django-recurrence,Nikola-K/django-recurrence