test:test_data: fix test run error.

An error was caused because there was no necessary field required
by Data.highestByDate(), add it.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
strategy:turtle: update atr and some commentaries

1) Remove 'table' argument from atr(). We just want one Turtle object
   to handle only one table in order to keep independent in logics.
2) Update some commentaries.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
strategy:turt1: upate strategy

update strategy and remove Test().

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
Merge branch 'winf-dev' into zhengwang-dev