Fix typo.

Applied fixes from StyleCI (overtrue#24)

Applied fixes from StyleCI (overtrue#21)

Merge custom parameters to codefields (overtrue#19)

Fix state empty error.

Applied fixes from StyleCI (overtrue#15)

Merge branch 'develop'

Develop (overtrue#14)

* Enhancement overtrue#9

* CS.

* sort methods.

修复无法使用自定义 Provider 问题 (overtrue#12)

使用自定义 Provider 时，因 initialDrivers 无相应的 key，会报 Undefined index 错误

Merge pull request overtrue#7 from overtrue/develop

Update �state.