Update documentation for r.branch
Fix according to @mglukhovsky
Add cursor.close for Python and Ruby
Omit empty parentheses in Ruby for cursor.close in Ruby
Remove pyyaml from OSX instructions
Add troubleshooting for unsigned package
Fix OS X instructions to build from source
Move assets and images from the www repo
Import the faq file from the www repo
Add CentOS + update back up
First pass on insert/update/replace/delete
Fix info about upsert and the nonAtomic flag
add description for rethinkdb-co

Add description for rethinkdb-co, a library that use ECMAScript 6 generators (`yield`) to harness callbacks.
Merge pull request #167 from hden/rethinkdb-co

add description for rethinkdb-co
Fixed nobrainer link, no review
Fixing outdated backup info.
Fixing backup link (no review)
Update writing operations
Use Secondary Indexes in SQL to ReSQL examples.

Also fixed some small typos.
Explain what  means