项目管理 & 代码托管

## 项目管理 & 代码托管 * [Github](https://github.com/) [free to $] * [Codebase](https://www.codebasehq.com/) [$] * [Bitbucket](https://bitbucket.org/) [free to $] * [Unfuddle](https://unfuddle.com/) [$] * [Assembla](https://www.assembla.com/) [free to $]