Tag the 4.8.0 release.

4.7.6
=====
- Fix ABI check in ppc (bug #7005).
- Update default shortcuts for xfce4-display-settings (bug #7036).
- Translation updates (pt, he, cs, en_BG, nb, ar).

4.7.5
=====
- Also request an interact for save-state-extended.
- Return a NULL state file is the sm-client is disabled.
- Fix the save-state signal.
- Translation updates (pt).

4.7.4
=====
- Add startup notification support for shortcuts.
- Translation updates (gl, sv, ja, it, ug).

4.7.3
=====
- Fix typo preventing shortcuts from working with new users.
- Make g_critical warning about exit(0) a DBG message.
- Translation updates (is, zh_TW, tr, hu, fr, sk, el, id, de).

4.7.2
=====
- Add key binding to popup Xfdesktop menu (bug #4994).
- Print warning before calling exit(0) in the session client.
- Test if working directory exists before spawning command.
- Allow icon names in xfce_gtk_button_new_mixed().
- Unset startup notification when launching in terminal.
- Make variable a volatile for thread safety.
- Fix bold labels in xfce_gtk_frame_box_new().
- Cleanup code comments.
- Translation updates (gl, de, nl, fi, ru, hu, uk, si, kk, pt, da,
  es, hr, eu, pr_BR, bn, pa, zh_CN).

4.7.1
=====
- New function xfce_spawn_on_screen_with_child_watch().
- Don't generate enums for XfceSMClientPriority.
- Build ChangeLog during make dist.
- Add visibility/alias handing code.
- Rename configure.in.in to configure.ac.in.
- Some other small fixes.
- Translation updates (es, pt_BR, sv, pt, kk, ca, gl, sk, cs, lv, eu,
  zh_CN, ja).

Tag 4.7.0 unstable release.