Add to support translated text with multiple locales in one file.

[huacnlee]

Fix #49

• Add to support translated text with multiple locales.
• Add _version for locale file for special the file format.
  • _version: 1 - Split each language into difference files (default).
  • _version: 2 - All language in same file.

Example

# app.yml
_version: 2
hello:
  en: "Hello"
  zh-CN: "你好"
  world:
    en: "Hello World"
    zh-CN: "你好世界"
welcome.message:
  en: "Welcome"
  zh-CN: "欢迎"

Or old version:

# app.en.yml
_version: 1
hello: "Hello"
hello.world: "Hello World"
welcome.message: "Welcome"

# app.zh-CN.yml
_version: 1
hello: "你好"
hello.world: "你好世界"
welcome.message: "欢迎"

Screenshot