#893 [Import] Allow for comments preceeded with '%'

[NETHeader]

Jabref fails when it tries to import a *.bib file with comments preceeded by '%', either if those are within / between field definitions or as a seperate line.

@BOOK{hecht,
% A single-volume book with one or more authors 
%
% Required fields: author, title, year/date
% Optional fields: editor, editora, editorb, editorc, translator, ...
% ---------------------------------------------------------------------
  author =       {Hecht, Eugene},   % Author name(s), e.g. {John Doe}
  title =        {Optik},           % The title of the publication 
  date =         {2005-01-26},      % yyy-mm-dd or yyyy-mm-dd/yyyy-mm-dd (omitting parts is ok)
}

BibLaTeX and biber handle those comments correctly, so it would be nice if Jabref also does.
You find a full example attatched for testing.