This update for gnuhealth fixes a number of bugs.

Fixes in GNU Health 3.06:

- Traceback when assigning a new meal order
- Traceback when displaying patient critical info in non-english languages
- Wrong widget for mealtime field
- Remove readonly from patient meal order warning, to correctly save state of the field

The dependencies tryton, trytond, trytond_account_invoice were updated for minor bug fixes.