Oops, yes I broke the translations in the about dialog. Sorry. I've fixed that now. The reason for that change is because I get this when I try to build it on oneiric:

cd . && \
		python2.6 setup.py clean \
		-a
running clean
'build/lib.linux-x86_64-2.6' does not exist -- can't clean it
'build/bdist.linux-x86_64' does not exist -- can't clean it
'build/scripts-2.6' does not exist -- can't clean it
WARNING: the following files are not recognized by DistUtilsExtra.auto:
  Copyright
  lernid.desktop.in
  po/lernid.pot
rm -rf debian/python-module-stampdir
find "/home/chr1s/src/lernid/lernid" -name '*.py[co]' -delete
find "/home/chr1s/src/lernid/lernid" -name __pycache__ -type d -empty -delete
find "/home/chr1s/src/lernid/lernid" -prune -name '*.egg-info' -exec rm -rf '{}' ';'
 debian/rules build
test -x debian/rules
mkdir -p "."
mkdir -p debian/python-module-stampdir
cd . && \
		python2.6 setup.py build \
		--build-base="/home/chr1s/src/lernid/lernid/./build"
/usr/lib/python2.6/dist-packages/gtk-2.0/gtk/__init__.py:57: GtkWarning: could not open display
  warnings.warn(str(e), _gtk.Warning)
ERROR: Python module lernid.CouchDBPreferences not found
Traceback (most recent call last):
  File "setup.py", line 86, in <module>
    'install': InstallAndUpdateDataDirectory
  File "/usr/lib/python2.6/dist-packages/DistUtilsExtra/auto.py", line 96, in setup
    __requires(attrs, src_all)
  File "/usr/lib/python2.6/dist-packages/DistUtilsExtra/auto.py", line 414, in __requires
    __add_imports(imports, s, attrs)
  File "/usr/lib/python2.6/dist-packages/DistUtilsExtra/auto.py", line 361, in __add_imports
    if __external_mod(cur_module, node.module, attrs):
  File "/usr/lib/python2.6/dist-packages/DistUtilsExtra/auto.py", line 315, in __external_mod
    mod = __import__(module)
  File "/home/chr1s/src/lernid/lernid/lernid/LernidOptions.py", line 23, in <module>
    from lernid.lernidconfig import VERSION
  File "/home/chr1s/src/lernid/lernid/lernid/lernidconfig.py", line 33, in <module>
    DESCRIPTION = _('Connect to a world of online tutorials quickly and easily.')
NameError: name '_' is not defined
make: *** [debian/python-module-stampdir/lernid] Error 1

Also, the GdkCursor change is required to fix this issue (also at build time), which occurs because there is no DISPLAY:

cd . && \
		python setup.py build \
		--build-base="/home/chr1s/src/lernid/lernid/./build"
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:57: GtkWarning: could not open display
  warnings.warn(str(e), _gtk.Warning)
/home/chr1s/src/lernid/lernid/lernid/widgets/IrcWidget.py:33: GtkWarning: IA__gdk_cursor_new_for_display: assertion `GDK_IS_DISPLAY (display)' failed
  hand_cursor = gtk.gdk.Cursor(gtk.gdk.HAND2)
Traceback (most recent call last):
  File "setup.py", line 86, in <module>
    'install': InstallAndUpdateDataDirectory
  File "/usr/lib/python2.7/dist-packages/DistUtilsExtra/auto.py", line 96, in setup
    __requires(attrs, src_all)
  File "/usr/lib/python2.7/dist-packages/DistUtilsExtra/auto.py", line 414, in __requires
    __add_imports(imports, s, attrs)
  File "/usr/lib/python2.7/dist-packages/DistUtilsExtra/auto.py", line 361, in __add_imports
    if __external_mod(cur_module, node.module, attrs):
  File "/usr/lib/python2.7/dist-packages/DistUtilsExtra/auto.py", line 315, in __external_mod
    mod = __import__(module)
  File "/home/chr1s/src/lernid/lernid/lernid/widgets/IrcWidget.py", line 31, in <module>
    class IrcWidget(Widget):
  File "/home/chr1s/src/lernid/lernid/lernid/widgets/IrcWidget.py", line 33, in IrcWidget
    hand_cursor = gtk.gdk.Cursor(gtk.gdk.HAND2)
RuntimeError: could not create GdkCursor object

I'm planning to drop xulrunner before alpha 2, and I'm going to start filing removal requests next week for applications which aren't ready, so I'd prefer to get this in ASAP

(for reference, see https://lists.ubuntu.com/archives/ubuntu-devel/2011-June/033476.html)