adding documentation for r.and_/r.or_ in python, and r.and/r.or in ruby
fixing references to r.and and r.or
Merge master in michel_grey_issue_1582
Update python script for r.and_ and r.not_
Merge pull request #143 from rethinkdb/michel_grey_issue_1582

Merge michel_grey_issue_1582 in v1.12.x
Merge branch 'master' (with @mlucy changes into v1.12.x
split.md
upcase downcase
related commands
object.md
Add docs for group in Python/JS
index.md
Replace square brackets in JS
updated python and JS indexes
object
split
upcase downcase
Fix according to Michael's feedback
upcase
fixed compilation