Merge pull request #607 from yakolee/master

support mysql hint statement
Merge pull request #608 from yakolee/master

update version to 1.0.8
Fix obvious mistakes like spelling errors
Merge pull request #609 from lizhanhui/master

Fix obvious mistakes like spelling errors
Merge pull request #613 from yakolee/master

improve mysql parser: operator ||
Merge pull request #614 from yakolee/master

bugfix for into outfile #582