I don't know if it's widely used at all, but I suspect [this](https://github.com/phamhien/hidex) is it on github.  
  
The questions don't fall in line with what that project seems to do though...  
  
Here's what we found so far:  
Test case question [1](https://askubuntu.com/questions/522662/how-do-i-add-a-new-file-to-hide-xs-library)  
`settings.dbname = cfg.get("dbname");` is in the source and `I've setup the library, and configured the database` might be a match.  

A quick set of greps didn't turn up much else in the way of similarity.  It would be nice if the OP's would respond to comments asking about what software they're asking about was and how it could be obtained.