[cxxtags_query] Added database query utility.
[cxxtags][bug-fix] Exclusde list didn't take effect.
[cxxtags_html_dumper] Stoped fetching unused columns from a database.
[cxxtags_html_dumper][bug-fix] Fixed bug around overriding.
[cxxtags_html_dumper][bug-fix] Added escaping process for html special chatactors.
[cxxtags][feature] Improved template support.
[test] update tests.
[cxxtags][feature] Improved template support.
[test] update template related tests.
[test] Added files commonly used in tests.
[cxxtags][refactor] Changed the way to touch files.