When building a list of individually shared events, ignore events that also belong to calendars that are shared with the user (to prevent duplication of events on calendar view).
Individually shared events can now be hidden by hiding the new 'Shared events' calendar.
If a user owns a calendar and has the same calendar shared with them, the calendar is no longer duplicated when the list of their calendars is retrieved.
[tx-robot] updated from transifex
[tx-robot] updated from transifex
Merge pull request #290 from ben-denham/share-with-owner

Calendar shared with owner - duplicate calendar fix
Merge pull request #289 from ben-denham/event-sharing-fixes

Event sharing fixes
Merge master