[Enhancement Suggestion] Rename 'Author' field to 'AppImage Creator' on AppImageHub

On AppImageHub the overview table

On the page for the individual applications, the *'Author'* named isn't necessarily the developer of the application, but only the packager of the AppImage.

Example screenshot:


Of course, I'm not the author of HTMLDOC -- that's Mike Sweet. I only started package the thing, in the hope that Mike will consider to merge a pull request of mine once I'm satisfied with the quality of this AppImage.

Therefore I suggest to rename that field to *'AppImage Creator'* or *'AppImage Packager'*. At the same time add another field for *'Software Author'* or similar and populate it (if available) with the contents of the *`"...."`* tag from the AppStream .appdata.xml