* 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.