1 part of Russian translation.
Fix of 1 mistake
2 part of Russian translation

Full translation of 1st section and begin of 2nd.
3 part of Russian translation

Little piece of translation.
4 part of Russian translation

Other part of translation.
Update lua-ru.html.markdown
Add Python3 simplified Chinese version.
Fix a typo, plus section headings
Finish most lines in section 1
Bash French translation added
Added yaml-fr
first fixes
[bash/fr] translators section added
more oddities

JavaScript is full of oddities .. I definitely wouldn't claim everything works "as it should" .. you don't have to include the gotcha's but I don't know, they're not that confusing for me.
Added description of  LinkedList, Map & HashMap.
A bit of section 2, 3, 4
All of section 6
Minor changes
Finish sections 2 and 3
Remove misleading example of NA in Levels section

The levels section was using a level "NA" together with "female" and "male", which is misleading (given that NA was just introduced as a missing value). I updated it to what I believe is a better example of how NAs are interpreted.

Additionally, I edited a comment about Inf that wouldn't compile. How about inserting it at the tutorial altogether?