Previously it was always possible to create within the calendar view.
For some modules this did not make sense and lead to confusing behavior,
for example: a new model instance created in the calendar view that was
not viewable in the calendar view, but was viewable in other views. By
adding a 'create' attribute (to be used in view xml), we allow users to
choose whether or not they want a calendar view to be able to create.
Note that this change does not affect the edit ability of calendar views
for existing instances.
Part of
Task: 2126530
Tiffany Chang (tic)
3e37ec8844