Module dependency checks on transliteration and pauthauto not working

I would like to thank all those involved in this project. This module opens up so many possibilities and I can see it being critical to many of my projects. So thank you for all you hard work.

I found some tiny bugs in the code that stopped the module from functioning. The fe_paths_entity_edit_form checks for modules transliteration and pathauto but then updates bad form items. This allows the user to select the options when the modules do not exist. I just updated the form paths so that the existing code works.

Just to be safe, since its possible that one of these modules might be removed but the fe_path configs not updated, I added some more module exist checks before the function were used in fe_paths_move_file.