add testcase
bugfix for 'FOREIGN KEY reference'
Merge pull request #605 from yakolee/master

bugfix for 'FOREIGN KEY reference'
update test code
support mysql hint statement
delete deprecated code
Merge pull request #607 from yakolee/master

support mysql hint statement
update version to 1.0.8
Merge pull request #608 from yakolee/master

update version to 1.0.8