Create smartling_download.php

Downloading Smartling translations
Create smartling_download.sh

Smartling download bash script that will create all the folders and print out all the files, eventually will actually add everything to git automatically
updating download script to automatically download all translations and then copy them over for ios and ruby, still need to do android
Update README.md
Merge pull request #1 from parnaudo/master

Automating all the translation stuff for ios and ruby