v1.5.0

• Update PDFPage methods for setting width/height/size to handle pages with CropBoxes:
  • #399
  • #405
• Add methods to PDFObject subclasses to access underlying values:
  • #238
  • #414
• Fix bug preventing JPG images using the CMYK colorspace from displaying (thanks @zwaldowski!):
  • #415
• Add methods to PDFDocument for reading document metadata (thanks @timKraeuter!):
  • See examples here: https://github.com/Hopding/pdf-lib#read-document-metadata
  • #336
  • #423