Define access levels in task contract (#67)

        String LIST_COLOR = "list_color";

        /**

         * The access level a user has on this list. <strong>This value is not used yet, sync adapters should set it to <code>0</code></strong>.

         * The access level a user has on this list (taken from android.provider.CalendarContract).

         * <p>

         * Value: Integer

         * Value: Integer (one of the values below)

         * </p>

         */

        String ACCESS_LEVEL = "list_access_level";

        /** Not specified by client, should be treated as read-write */

        Integer ACCESS_LEVEL_UNDEFINED = 0;

        /** Can read all tasks and details, no write access */

        Integer ACCESS_LEVEL_READ = 200;

        /** Full access to the tasks list */

        Integer ACCESS_LEVEL_OWNER = 700;

        /**

         * Indicates that a task list is set to be visible.

         * <p>

        fun create(account: Account, provider: TaskProvider, info: ContentValues): Uri {

            info.put(TaskContract.ACCOUNT_NAME, account.name)

            info.put(TaskContract.ACCOUNT_TYPE, account.type)

            info.put(TaskLists.ACCESS_LEVEL, 0)

            Ical4Android.log.info("Creating local task list: $info")

            return provider.client.insert(provider.taskListsUri().asSyncAdapter(account), info)