Refactor redirects implementation
Refactor redirects implementation

- make #setup_redirects return paths of succeeded operations
- add "Creating new redirects ..." stdout

pathawks/s3_website,SivagnanamCiena/s3_website,dojo4/s3_website,WangKaimin/s3_website,SivagnanamCiena/s3_website,xpekatt/s3_website,xpekatt/s3_website,page-io/s3_website,pathawks/s3_website,page-io/s3_website,WangKaimin/s3_website,dojo4/s3_website