- 
            The spirit::istream_iterator(seemulti_pass) now checks at construction
            time whether the underlying stream has reached eof (end of file).
- 
            Spirit.Qi now properly collapses attributes generated
            from optionals embedded inside another optional parser (i.e. -('(' >
            -int_
            >> ')'). That means that
            attributes like
            boost::optional<boost::optional<int> > will be
            collapsed to
            boost::optional<int>`. Thanks to Peter Schueller for reporting
            that problem.
- 
            Actions attached to binary parsers now properly propagate the parser's
            attribute. Thanks to Mathias Born for reporting this issue.
          
- 
            Fixed TRAC#5701: lexertl token_value_type returns const unused for nonconst
            ref.
          
- 
            Fixed a problem in the lexer (position_token) causing problems with enabled
            parser debugging (MSVC2010).