use SQLite3 database setting on TravisCI.
use SQLite3 database setting on TravisCI.

smalruby/smalruby-editor,takaokouji/smalruby-editor,smalruby/smalruby-editor,takaokouji/smalruby-editor,smalruby/smalruby-editor,takaokouji/smalruby-editor