link to local files with pybliographic

haven't quite made this work yet, but...

in pybliographic, go to settings->preferences->resource. select another field from the pull-down at the bottom of 'viewable-fields', like 'location', and add it. also had to move the 'acroread' association in viewers below evince (and put it google-chrome above mozilla while i was at it) since that's what's on ubuntu by default.

problem is that when i have anything in the location field, nothing shows up in the resource right-click pop-out (not even 'url'). i'm also having problems with spaces in paths in the url field.