v4.5.15 release

v4.5.15 had three bug fixes.

Significant defects addressed

• Corrected an issue in which reporting widgets with custom grouping displayed special characters incorrectly.
• Corrected two issues with the rich-text editor in full-screen mode:
  
  • The move icon open_with did not appear with enhancements.
  • Quote modules were read-only.
• Corrected an issue in which copying a copied asset (editor copies an article, then copies the copy) threw an error message Can't render /cms/copy-record!.