file manager permissions dashboard page styling and controller fixin #28...

...5

Got bootstrap in there on the submit buttons, and updated controller so it was using the correct initial class declaration, so that got the page title appearing. Noticed it was erroring on save, so added the "use FileSet" and fixed it. I think that's correct? I also noticed this was in there:  $fs = FileSet::getGlobal(); Dunno if that's still needed or functioning, if it's notn functioning was why the error was occurring?