Update accerciser3 to 3.12 (so it now works)

What's New
==========
Two GNOME Goals accomplished:
- Joanmarie Diggs did the Python 3 Porting Goal (Thank you!)
- Modernize your autotools configuration
Other changes:
- Force accerciser to use Wnck 3.0 version
- Stop including the spec file for rpm packages
- Fix for bug 691136 - Replace deprecated GObject methods with their GLib equival
- Fix for bug 691145 - The Interface Viewer's States tree is too small
- Fix for bug 691147 - The Interface Viewer displays markup
- Fix for bug 691141 - Interface Viewer does not populate in Python 3
- Fix for bug 687885 - Add keywords to the desktop file
- Fix for bug 692543 - Remove markup from translatable strings
- Fix for bug 694120 - Accerciser crash at launch because python3 gettext
- Added some categories in the .desktop file for accerciser
- Fixed view manager's popup menu and translations
- Updates on accerciser.doap
- Fix for bug 695141 - Add high contrast icon
- help: fix a typo
- Remove INSTALL from git repo
- Fix for bug 709349 - Make the highlight window a POPUP window
- Fix for bug 709122 - Do not wrap __class__ object from plugins' methods
- ipython: Update to match the latest IPython API
- ipython: seek to 0 after truncating stdout
- ipython: Adding auto-indentation
- Fix for bug 723403 - Save window's properties at 'delete-event' time
- Validate plugin: Make use of metaclasses compatible on python 2.x & 3.x
- Interface Viewer plugin
  - Display of states should be wider
  - Avoid the misalignement of elements when resizing
  - Fix for bug 660971 - Fixing iv plugin's caret offset value
  - Fix spinner on Value's section
- Macaroon
  - Make Macaroon work in Python 3
  - Update get_text call according to latest API
  - When recording, put right ATSPI roles in the output sequence
- Quick select: fix inspect accessible under mouse
- IPython View: Add backwards compatibility with old stable releases of IPython
- User docs: Fixed a few boken/redirected links
- Many new and updated translations
Updated devel/accerciser3 to 3.12.0