1.修改ParserTable生成规则
2.修改BNF

git-svn-id: http://qlanguage.googlecode.com/svn/trunk@255 6d982bb3-a5a7-393d-ffc5-582415be9c85
merge from branches/QParserGenerator_Release_1_0

git-svn-id: http://qlanguage.googlecode.com/svn/trunk@257 6d982bb3-a5a7-393d-ffc5-582415be9c85