Revert "Add always_at_center option for Applicatoin."

This reverts commit 9bd1954e9ab6f72c44506ebaa99b14bc3f0e7928.
Don't use virtkey, it's not best way, we should call vte function directly.
A better README written in markdown.
Convert some characters from SBC case to DBC case.
Merge pull request #24 from FreeBirdLjj/a_better_readme

A better README
Fixed ctrl event bug.
Support spanish and portuguese
Fixed render width with es_ES
更新了一些语言的翻译,增加了几种语言,修改了 locale_config.ini 文件。
更新了一些语言的翻译,增加了几种语言,修改了 locale_config.ini 文件。