Formulator: Add a FloatField validator to take account of the precision and the user input length.
add possibility to use a SQLConnection from integration site / web service tool
make possible to import Conduit from portal_components
fixup! stop copying (deprecated) Payment Condition documents from Trade Condition to Order, and from Order to Packing List.
Mail Message: prevent sending email twice in case of conflict errors

* Method is activated with max_retry 0 and no retry on conflict error
* Document is not modified in case of multiple recipients
fixup! credentials: only take into account persons with reference when looking up login from email
Alarm check skin cache added to erp5_administration

This alarm will check if a cache is assigned to some files in portal_skins.
If a file has no cache manager, it triggers a Problem.
When solving the alarm, `http_cache` will be assigned to uncached files.

Conflicts:
	bt5/erp5_administration/bt/revision
erp5_accounting_l10n_de_skr04: Update most important categories to 2012 version of SKR04 and correct wrong title "Deutch" to "Germany".
erp5_accounting_l10n_de_skr04: Remove unused skr04 categories
it syncml table does not exist, create it
make indexation of document into syncml works even for data coming from integration modules
Remove username field server side autofill on login forms

<input login `request.get("__ac")` > removed

When the login form is rendered, the login field is not already filled.
We assume that the "__ac" cookie is deleted, so no need to generate the
login name server side. It also avoids to use old "__ac" cookies.
Browsers are already able to autocomplete them just by clicking on the field.
Remove persistent username memorization from erp5_commerce_widget_library login form

__ac_persistent set to 0
Fix: Remove temporary `try .. except Exception`