message: fix(gulp-bump): bump both package.json and package-lock.json
diff: @@ -16,10 +16,10 @@ var paths = {
  function versionBump(semver) {
  return gulp
  - .src(['./package.json'])
  + .src(['./package.json', './package-lock.json'])
  .pipe(bump({ type: semver }))
  .pipe(gulp.dest('./'))
  - .pipe(git.commit('bump package version'))
  + .pipe(git.commit('rev package version'))
  .pipe(tag_version());
  }
  