bug fix：add 'datauri' to package.json's dependencies
bug fix：add 'datauri' to package.json's dependencies

DveMac/grunt-inline,marcusklaas/grunt-inline-alt,tmcdonnell87/web-resource-inliner,jrit/web-resource-inliner,yisbug/grunt-inline,YuHuaiChen/web-resource-inliner,hidde/grunt-inline-alt,RyuuGan/web-resource-inliner,DveMac/grunt-inline,marcusklaas/grunt-inline-alt,chyingp/grunt-inline,tmcdonnell87/web-resource-inliner,TimWillis/grunt-inline,TimWillis/grunt-inline,JoshuaKimble/grunt-inline,yisbug/grunt-inline,YuHuaiChen/web-resource-inliner,hidde/grunt-inline-alt,circlingthesun/grunt-inline,JoshuaKimble/grunt-inline,chyingp/grunt-inline,DavidTPate/web-resource-inliner,jrit/web-resource-inliner,DavidTPate/web-resource-inliner,RyuuGan/web-resource-inliner