- open operator was incorrectly checking if the font path was set. - rna ID editable check was also incorrect, checking the ID name rather then the filename. - use define FO_BUILTIN_NAME rather then "<builtin>".
- open operator was incorrectly checking if the font path was set. - rna ID editable check was also incorrect, checking the ID name rather then the filename. - use define FO_BUILTIN_NAME rather then "<builtin>".