Merge pull request #15 from alfredocarella/master

Translated "es_chapter2.txt" and "es_chapter2.figures.txt"
Small chapter9 changes.
Updating chapters 10 to 12 slightly.
Chapter 2 translated to Chinese
Chapter 2 translated to Chinese
Merge pull request #16 from 7bitex/master

Chapter 2 translated to Chinese
Done editing chapter 13.
Start translating source codes into Chinese
Minor changes to README.md
Merge pull request #17 from 7bitex/master

Start translating source codes into Chinese
New Croation (hr) translation starting.
Merge branch 'master' of github.com:asweigart/inventwithpython3rded
Added READMEs for new languages. Added notes about the optional "cut" chapters.
Adding folder for German translation.
Adding folders for Russian and Bangla
Adding folders for Italian and Albanian.
Adding folders for Finnish and Karen languages.
Adding Indonesian folder.
Adding Polish folder.
Updating readme