[gexiv2] (8 commits) Non-fast-forward update to branch wip/fix-raw-for-iptc

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/fix-raw-for-iptc' 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:

  ec24c4e... iptc: Fix return value of get_raw_ for multi-value

Commits added to the branch:

  ff24907... Add catch clauses for `WError` exceptions (*)
  1a17815... Bump project version (*)
  8c39531... Fix URL in _metadata_[try]_get_tag_type() docs (*)
  f30cb11... Modernise the project building (*)
  26b6323... Add option to print unknown tags in gexiv2-tool (*)
  fb40a24... Squashed commit of the following: (*)
  d8a6f4b... Add `_try` versions of existing GError functions (*)
  1dd330b... iptc: Fix return value of get_raw_ for multi-value

(*) This commit already existed in another branch; no separate mail sent