[Erp5-dev] Business Template installation update

[Aurélien Calonne]

Hi all

I've update the way of install for Business Template. 
So if you want to use it, you must update you site in this order :
* upgrade erp5_core
* update you Products and restart your zope
* add Trash Tool from ZMI
* replace previous workflow business_template_installation_workflow.xml by the 
one in ERP5/boostrap

Now when you upgrade a business template, you can choice for each modified 
objects what to do (uprage, backup, don't upgrade...). Then a trash bin is 
created in the trash tool with all backup objects, so that you can see 
previous version of objects and reuse it if necessary.

-- 
Aurélien