Merge pull request #2 from MozillaChina/master

合并
Merge pull request #9 from yuanwowo/master

introduction.md translation from English to Chinese
Merge pull request #3 from MozillaChina/master

上游更新
修改标题
@yuanwowo @lucyking 请注意不要修改一级标题和 {} 中的文字., 因为这个会影响到其他地方的引用.
Merge pull request #10 from meteormatt/master

修改一些小地方
更新进度和贡献者信息
Merge pull request #11 from meteormatt/master

更新进度和贡献者信息
Merge pull request #4 from MozillaChina/master

合并
修改说明处的引用
Merge branch 'master' of github.com:meteormatt/firefoxos-quick-guide
Merge pull request #12 from meteormatt/master

修改说明处的引用
setup.md translation from English to Chinese