Made editing VN relations + reverse relation update work
Made editing VN relations + reverse relation update work

Using a textfield to input the relations while debugging, the
upcoming javascript interface will use that field internally.

morkt/vndb,christian-roggia/vndb,morkt/vndb,morkt/vndb,erengy/vndb,erengy/vndb,erengy/vndb,morkt/vndb,morkt/vndb,christian-roggia/vndb,christian-roggia/vndb