[Docs] document optional param for renderComponentToString
Remove custom attrs properly when setting to null

I don't think this particular codepath was exercised at all (because all the callers call deleteValueForProperty) but this fixes a bug here nonetheless.
add chinese translation for 01-why-react.md
fix some translation error
fix some translation error
Merge branch 'master' of github.com:rayqian/react

Conflicts:
	docs/docs/01-why-react.zh-CN.md
Normalize whitespace for transformed JSX code
Update jasmine-support.js

fix typo in multiple error messages.
fix `(`
make translation better
add translation for getting-started.md
change some translation words
Fix a minor typo in the `update()` docs
Merge pull request #1273 from wincent/typo-fix-02

Fix a minor typo in the `update()` docs
Upgrade Commoner to v0.9.2 to silence deprecation warnings.

Closes #1278.
Merge pull request #1186 from chenglou/doc-toString-opt

[Docs] document optional param for renderComponentToString
add CodeWinds episode 4 w/Pete Hunt to videos

Added to videos.md
Merge pull request #1282 from jeffbski/addCodewinds004Videos

add CodeWinds episode 4 w/Pete Hunt to videos
Update AUTHORS for 0.10
0.10 release materials