Change ArgParse to Click

[rhenter]

PR with a refactor changing native ArgParser lib to Click lib and fix the config file uses. Following click documentation:

http://click.pocoo.org/5/

• Command using help option:

  
  $ translate-cli --help
  Usage: __main__.py [OPTIONS] TEXT...
  
  Python command line tool to make on line translations
  
  Example:
  
     $ translate-cli -t zh the book is on the table
     碗是在桌子上。
  
  Available languages:
  
     https://en.wikipedia.org/wiki/ISO_639-1
     Examples: (e.g. en, ja, ko, pt, zh, zh-TW, ...)

Options: --version Show the version and exit. -f, --from TEXT Sets the language of the text being translated. The default value is 'autodetect' -t, --to TEXT Sets the language you want to translate. --help Show this message and exit.

 - Command using version option:
```shell
$ translate-cli  --version
translate, version 3.3.0

@terryyin I also create a sample from config file to be used in the project documentation

[terryyin]

shall I do a new release now?

[rhenter]

@terryyin yes please !