message: Support to ignore refs during palette build
diff: @@ -30,6 +30,7 @@ gulp.task('palette.build', 'Build default palette', [], cb => {
  .then(([activities, triggers]) => makePalette(
  triggers
  .concat(activities)
  + .filter(contrib => !ignoreRefs.includes(contrib.ref))
  .concat([{
  type: 'action',
  ref: 'github.com/TIBCOSoftware/flogo-contrib/action/flow'
  @@ -85,10 +86,10 @@ function getAll(type) {
  ref: contrib.ref
  }))
  .catch(err => {
  + console.error(err);
  console.warn(`Error reading descriptor for "${descriptorPath}"`);
  })
  })
  - .filter(result => Boolean(result) && ignoreRefs.indexOf(result.ref) === -1)
  ))
  }
  