Version 0.0 of the SDSS PSFs: imported all previous work This is the very first version of the PSFs of SDSS. All previously done work have been imported into this project to have all under `git' control. That is the reason of creating this first version/tag. However, right now the generated PSFs have been built with only 20 stars in each filter. In next steps this number will be increased to obtain the final PSFs. In that time, all codes will be also improved and documented in much more detail.