Gourmand

* i18n fixes from Simon Darlington
* Fix bug that reversed ingredient order when adding ingredients to a group.
* Allow fraction-use to be turned off, and make it default to off for
German (other locales can default it to off via defaults_foo.py)
* Fix bug that caused unicode error on upgrade from metakit.
* Fix some other bugginess in handling old upgrades.
* Rearrange main index window to work better on small screens.
* Update to DTD thanks to Gianpaolo Racca.

* Add new icons from Yula Zubritsky
* Add nifty timer.
* Parse times written out as words.

* Fix bug that broke changing the shopping category of an ingredient
from within the ingredient editing view.
* Fix traceback when filling ingredient-editor from a unitless
ingredient.
* Fix problem with recipe-links not working when they contained
unicode (such as the unicode for 1/2, 1/4, etc.)
* Make page-chooser in edit-view highlight the first page when we open
a new recipe card. Otherwise, the function of the widget is unclear.

* Fix ingredient editing so that changes are no longer automatically
committed to the DB. Now the ingredient tab of the recipe edit window
works like everything else, with a standard "save" model.
* While we're at it, we prevent crashes from happening.
* Make Undo work more consistently throughout recipe card.
* Make database upgrade happen at runtime rather than install-time --
this allows us to play nicely with RPM and DEB packages.

* Fix bug causing export from recipe card not to multiply ingredients
properly.
* Fix various problems with ingredient editing (display of updates,
undo/redo)
* Fix dialog responses so hitting return and escape works more consistently.
* Fix bug in addition of ingredients in shopping list.

* Fix bug causing recipe cards to be destroyed when closed.
* Fix bug causing "None" to show up in shopping list when there is no
unit.
* Fix popup menus throughout.