Update index.ja.json

modify some sentences or words into more familiar expression.
Update index.nb_NO.json

Fixed typos/grammar
Update index.nl.json

Make it clear it's pre-alpha in Dutch
Belarusian translation
Proper index.ro.json translation
Minor fixes
Minor fixes
Update and rename index.en.json to index.sk.json

Adding translation for Slovak language.
Finnish language nitpicking
Merge pull request #65 from enukane/update-ja

Update index.ja.json
Merge pull request #66 from chinatsun/patch-1

Fixed typos/grammar in index.nb_NO.json
Merge pull request #67 from kingkorf/master

Update index.nl.json
Merge pull request #68 from wizardist/translation/be

Belarusian translation
Merge pull request #69 from Theon144/master

Create index.cs.json (Czech translation)
Merge pull request #71 from z0id/patch-1

Updated romanian translation for the website.
Merge pull request #73 from aasami/patch-1

Update and rename index.en.json to index.sk.json
Merge pull request #74 from mmalmi/master

Finnish language nitpicking
Disable download button, re-add en.json

ALL LANGUAGES MUST UPDATE
coming soon; have to re-add
Fixed some grammatical errors in German translation.