Add docs for org status api
start file crud docs with creation

This needs updating once we make a decision on how passing
author/committer will work, and probably something better for the
response.
add update-file docs
add delete-file docs

This obviously needs a better response example, if only because the
commit message is about *adding* the readme.
Merge remote-tracking branch 'github/master'
Merge github/master from upstream
Revert "Add docs for org status api"

This reverts commit f18879112096c122b962c3d0e110311785caf695, which was
accidentally added to master. That commit belongs on a branch until it
becomes public in the upstream repo (github/developer.github.com).
Get some starting words for the Guide
Add file manipulation guide
Address review
Improve samples
Update file-manipulation.md
It's the original SHA, man.
Merge github/master from upstream
author comes from committer, not vice versa

see github/github@7d2ba7c951d459f77ef7b486f0eb4b9db77d542a
Indicate specific optional section
Merge github/master from upstream
Branch status API docs
Merge github/master from upstream
Fix author sequencing