[gtksourceview] Created tag 3.17.3

[Sébastien Wilmet <swilmet src gnome org>]

The unsigned tag '3.17.3' was created.

Tagger: Sébastien Wilmet <swilmet gnome org>
Date: Mon Jun 22 20:58:22 2015 +0200

    Release 3.17.3

Changes since the last tag '3.17.2':

Balázs Úr (1):
      Updated Hungarian translation

Christian Hergert (1):
      sourcemap: be greedy about line height

Daniel Mustieles (1):
      Updated Spanish translation

Dimitris Spingos (1):
      Updated Greek translation

Paolo Borelli (1):
      Add "smart-backspace" property

Sébastien Wilmet (11):
      Post-release version bump
      FileLoader: fix variable name
      file: add is_externally_modified() and is_deleted() functions
      file: use g_set_object()
      file: add the read-only property
      file: make check_file_on_disk() public
      FileLoader: call gtk_text_buffer_set_modified()
      file: add is_local() function
      Revert "FileLoader: call gtk_text_buffer_set_modified()"
      FileLoader: document not_undoable_action() and set_modified() behavior
      Release 3.17.3