[evince] (11 commits) Non-fast-forward update to branch wip/chpe/xmp

[Christian Persch <chpe src gnome org>]

The branch 'wip/chpe/xmp' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  9aef3c8... pdf: Fix metadata parsing precedence
  2472764... libdocument: Move XMP parsing from backend/pdf to libdocume
  6417803... libdocument: Only register XML namespaces once
  f9f0e57... libdocument: Factor out function to create GDateTime from t
  4473b9a... libdocument: Fix mismatched allocators
  8136668... libdocument: Plug some mem leaks in the XMP parser
  d14dafd... libdocument: Set EvDocumentInfo.fields_mask when parsing XM
  b684d0f... pdf: Only flag EvDocumentInfo fields when actually present
  a2352f5... djvu: Extract XMP metadata

Commits added to the branch:

  761fd10... pdf: Fix metadata parsing precedence
  1e771eb... libdocument: Move XMP parsing from backend/pdf to libdocume
  1f85b3b... libdocument: Only register XML namespaces once
  a5df14f... libdocument: Factor out function to create GDateTime from t
  b267b7f... libdocument: Fix mismatched allocators
  938a8da... libdocument: Plug some mem leaks in the XMP parser
  95e403d... libdocument: Set EvDocumentInfo.fields_mask when parsing XM
  b150ac7... pdf: Only flag EvDocumentInfo fields when actually present
  d573769... djvu: Extract XMP metadata
  42992da... libdocument: Make XMP parser take data length
  627ea21... tiff: Extract XMP metadata