A package that saves your project to a file which contains relative paths to all opened directories inside the project, which makes it easier to migrate your project file along with your directories. This is extremely convenient if you work on TFS and switch among several branches.
E.g., you have a project that contains 3 directories:
And your project file saves to C:\Workspace\ProjectA\my.atom-project
The content of my.atom-project file would be:
If you migrate ProjectA folder to D:\Workspace, the project will still work.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.