* Cache: add clear method
* google-translate script: add config file
* google-translate script: auto typo correction

* GoogleTranslator: text to speech (audio)
* GoogleTranslator: pronunciation (text)
* GoogleTranslator: examples - definitions

* Refactor tests
* Αdd POST support
* Add support for Python 3.*
* ProxySelector proxies from http
* Ιntergrade the file translation into the GoogleTranslator object
