Patches blank to tab (overtrue#55)

* 汉字拼音字典打patch的时候，增加兼容性，空格转为tab，统一起来

* 字典中空格转为统一的tab【\t】

* 空格替换为tab

Typo.

Require PHP >= 5.4

V3 (overtrue#45)

* Add tools.

* Improve words.

* Loader interface.

* Remove Pinyin dir.

* Remove Old class.

* Rename tools.

* Refactory.

* Segment words.

* Tests.

* Update README.

* Typo

* Fix tests.

* Update .scrutinizer.yml

Bugfix. solved overtrue#39

Fix tests.

Merge pull request overtrue#31 from xjchengo/refine-dictionary-property

加快拼音转文字的速度

Support PHP 7

补充词库 Fixes overtrue#28

First letters bugfix overtrue#27