Merge pull request #338 from rorlab/master

#340 Episode translated into Korean
Merge pull request #339 from rorlab/master

#334 Compass and CSS Sprites translated into the Korean
Changes to episode 235.
Japanese translation of episode 340
Japanese translation of episode 342
Added English episode 344.
Merge pull request #341 from nomfjmt/master

Japanese translation of episodes 340 and 342
Japanese translation of episode 344
Added English episode 346 and 348.
Merge branch 'master' of github.com:defaude/asciicasts.com-translations
Merge https://github.com/defaude/asciicasts.com-translations
Japanese translation of episode 348
Added polish translation for README.markdown file
Merge pull request #344 from wafcio/feature/polish_translation_of_readme_file

Added polish translation for README.markdown file
Merge pull request #342 from nomfjmt/master

Japanese translation of episode 344
Added Polish translation for 348 episode
Added polish translation for 3 episode
Added polish translation for episode 4
Merge pull request #345 from wafcio/feature/polish_translation_for_348_episode

Added Polish translation for 348 episode
Merge pull request #346 from wafcio/feature/polish_translation_for_3_episode

Added polish translation for 3 episode