[gimp] (8 commits) Non-fast-forward update to branch wip/schumaml/GimpUI-GIR-issue-6093

[Michael Schumacher <schumaml src gnome org>]

The branch 'wip/schumaml/GimpUI-GIR-issue-6093' 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:

  ea4f16f... libgimp: link libgimp and libgimpbase when building GimpUI 

Commits added to the branch:

  7ed6855... Issue #5863: No namespace info available for XMP prefix. (*)
  0f7c628... plug-ins: move py-slice.py to gimp-data-extras. (*)
  f6f9483... app, menus: get rid of custom input method menu. (*)
  1649073... po-python: remove py-slice from POTFILES.in. (*)
  6d7d739... app: remove unused (deprecated) property read. (*)
  9a05f24... plug-ins: fix uninitialized warnings. (*)
  df507c0... Remove trailing spaces in 3 strings (*)
  6577a20... libgimp: link libgimp and libgimpbase when building GimpUI 

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