[FEATURE] Multiple private Calendars can be created. Each calendar can have its own default color; single events of a calendar can override this setting.
[COMPATIBILITY] When creating or updating an event using CalDAV, the etag is returned.
v0.1.1
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[FEATURE] A "New Event" Button in the navigation bar of the calendar is added.
[FEATURE] When creating an event by dragging in the calendar, the "Edit Details"-Link leads to a page where the details can be added before actually creating the event.
[BUGFIX] When editing a event, the start time cannot be set befor the end time anymore.