Ensure CDN URL
Don't undefine me, bro
Merge pull request #68 from uploadcare/ensure-cdn-url

Ensure CDN URL
Global pathValue option
CDN URLs only for pathValue

With pathValue:
- base/uuid/
- base/uuid/modifiers/

Without pathValue (legacy):
- uuid
- base/uuid/modifiers/
Merge pull request #70 from uploadcare/path-value-fixes

Path value fixes
some changes in FileGroup
Merge branch 'master' into multiupload

* master:
  CDN URLs only for pathValue
  Global pathValue option
  Don't undefine me, bro
  Ensure CDN URL