Document the new parse kernel $accept rule behaviour in more detail; this is breaking change in the parser for those who expect boolean `true` to be produced by any successful grammar run with a grammar with no or only minimal custom action code (with no return statements as alternative to reducing all the way down to the `$accept` rule).
Document the new parse kernel $accept rule behaviour in more detail; this is breaking change in the parser for those who expect boolean `true` to be produced by any successful grammar run with a grammar with no or only minimal custom action code (with no return statements as alternative to reducing all the way down to the `$accept` rule).

GerHobbelt/jison,GerHobbelt/jison,GerHobbelt/jison,GerHobbelt/jison