Add calendar selector for lightning URL-generator.

To-check suppress encodeURIComponent in getCalendarsForUser.
This whole function is used in the code, it's just the references to alarm that do not exist anymore.
```coffeescript
@Event.tags (err, results) ->
    # error case is ok
    if
        ...
    else
        rawCalendars = results.calendar
        # rest of the function is ok
```