[dia: 2/2] Merge branch 'xdg-base-dir-spec-support' into 'master'

[Zander <zbrown src gnome org>]

commit 9233ef09489062567e847db4daeede36a6b06f5f
Merge: 87d77162 f5015d2a
Author: Zander <ajhb2001 outlook com>
Date:   Fri Dec 7 15:01:43 2018 +0000

    Merge branch 'xdg-base-dir-spec-support' into 'master'
    
    Add support for the XDG Base Directory Support with an automated migration path.
    
    See merge request GNOME/dia!5

 app/app_procs.c                     | 35 +++++++++++-------
 app/menus.c                         |  4 +--
 app/sheets_dialog_callbacks.c       |  4 +--
 lib/dia_dirs.c                      | 72 +++++++++++++++++++++++++++++++------
 lib/dia_dirs.h                      |  4 ++-
 lib/dialib.c                        |  2 +-
 lib/libdia.def                      |  3 +-
 lib/object_defaults.c               |  4 +--
 lib/persistence.c                   |  4 +--
 lib/plug-ins.c                      |  6 ++--
 lib/sheet.c                         |  2 +-
 objects/custom/custom.c             |  4 +--
 objects/custom_lines/custom_lines.c |  4 +--
 plug-ins/python/python-startup.py   | 20 ++++++++++-
 plug-ins/xslt/xslt.c                |  3 +-
 tests/test-objects.c                |  2 ++
 16 files changed, 128 insertions(+), 45 deletions(-)
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