clean up hyperlinks
Improve comments & fixed typo

- Fixed typo on ion_auth_model.php
- Add space between // and comments (Improve reading)
- Capitilizing some comments
Add license.
Added space on php closing tags
update
Update model

Added missing Capital letters on protected variables
Add variable explanation
fixes bug that i made
Rebase join and tables config vars

Setting join and tables config in a array.