Check workflow before a run

We use eslint for linter and style control. Please use the latest stable eslint release. The eslint config file is .eslintrc. The file name format is controlled by eslint-plugin-filenames.

If you are using sublime text, there are several plugins that support eslint in the editor: sublimelinter, sublimelinter eslint, and eslint formatter.

The default branch will be updated with sprints. When a sprint is closed, the sprint will merge to master, and a new branch will be created from master to the next sprint. All commits or pull requests should be made to the current default branch. A sprint branch is name as sn, where n is the sprint number.