Log Message:
xfce4-session: update to 4.13.1:

- Add/Edit Application Autostart Entries (Bug #13271)
- Remove non-existent grid properties (Bug #13271)
- fix coverity 178990 Resource leak
- fix coverity cid 178989 Dereference after null check
- 178988 'Constant' variable guards dead code
- fix coverity cid 178987 Logically dead code
- fix coverity cid 87608 Dereference after null check
- 178988 'Constant' variable guards dead code
- fix coverity cid 178987 Logically dead code
- fix coverity cid 87608 Dereference after null check
- fix coverity cid 87607 Unchecked return value from library
- Hybrid Sleep support - "hibernate" and suspend the system
- xfce4-session-logout: deconflict -h option (Bug #12806)
- Export the SSH_AUTH_SOCK when spawning client Bug #13486
- fix: Compilation error with --disable-polkit Bug #12760
- Require libxfce4ui-2 instead of libxfce4ui-1 in pc.in file
- xfsm-manager: pass manager variable to g_timeout_add Bug #13802
- Bump GTK version to 3.20
- Check accessibility depending on xfsm configuration
- Fix keyboard grab for logout window
- Fix fadeout window using Xlib API
- Fix gdk max version to 3.20
- Translation updates: am, ar, ast, be, bg, bn, ca, cs, da,
  de, el, en_AU, en_GB, eo, es, eu, fi, fr, gl, he, hr, hu,
  id, is, it, ja, kk, ko, lt, lv, ms, nb, nl, nn, oc, pl, pt,
  pt_BR, ro, ru, sk, sl, sq, sr, sv, th, tr, ug, uk, ur, ur_PK,
  vi, zh_CN, zh_HK, zh_TW