Ricki Hirner b59fb55033 Implement Android 6-style permissions ... * increase target API level to 23 (Android 6), which makes Android 6-style permissions mandatory * AUTHENTICATE_ACCOUNTS permission is only required up to API level 22 * new activity: PermissionsActivity which shows missing permissions and provides buttons to request them * DavService: Android shouldn't send a null Intent, but sometimes it does, so implement null check * LocalTaskList: tasksProviderAvailable may return true on API level 23+ even if permissions are not sufficient * SyncAdapterService: show a notification (with Intent for PermissionsActivity) when permissions are not sufficient * when creating accounts, set OpenTasks sync always to true if API level is 23+ (even if OpenTasks is not installed [yet]) * update Lombok		2016-04-10 15:55:11 +02:00
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wrapper	Implement Android 6-style permissions	2016-04-10 15:55:11 +02:00