Serialization via activity tag is specific for some portal types not for all. As we have a way to enable it per portal type (in type based method) no need to have it here.

add empty init scripts for Person and Organisation so that we can override init script without overriding these portal type definitions themselves.

http://www.imagemagick.org/Usage/masking/#remove

If no module is selected, check nothing.

There is no control where context would be used.

remove Delivery_viewSolveDivergenceDialog in erp5_base because it already exists in erp5_simulation or erp5_simulation_legacy.

add a hidden field in Delivery_viewSolveDivergenceDialog so that user are forced to update the dialog first.

fix a condition of Person_view/my_default_email_url_string so that only one email field is displayed on a new Person document.

changeTranslations was removed in c60e89fe in favour of single-value,
better-named setter.

Otherwise, deleting objects and packing would not free memory.