1.13.3 (unstable):

* Relationships Overview: Avoid a crash and a warning when closing.
  (Murray Cumming) Bug #607938 (Michael Hasselmann)
* Import: Avoid a hang, hopefully.
  (Michael Hasselmann)
* Import: Fixed out-ouf-bounds crash.
  (Michael Hasselmann)  Bug #607938 (ialx).
* New file: Allow the title to contain quotes, avoiding weird errors.
  (Murray Cumming) Bug #607957 (Michael Hasselmann)
* libglom:
  - Improved include paths used in headers.
  (Murray Cumming)
  - Avoid crashes with invalid parameter values.
  (Michael Hasselmann)
* Use Gtk::ToolPalette, requiring gtkmm 2.19.4, instead of code copied from libegg.
* Command-line arguments: Do some checks.
  (Murray Cumming)