Submit action must be disabled while solver is being updated. End user sometimes click too fast that submit action fails due to lack of 'my_tested_property_list'.

Split each page into a separate gadget.
Stop using patched renderjs.

When a delivery was splitted, then the new delivery was also splitted,
and so on, we were generiting ids like "1_split_0_split_0_split_0_split_0...".
It ended having simulation having a path up to 240 characters on some projects
due to this (near 255 catalog limit).

For keeping some information on the split, only keep "_split_" one time in the
id. If we really need to know exactly from which simulation movement a new
splitted simulation movement is coming from, we should use something else than
id.

Now ERP5Site_reindex is not called during test setup, thus some tools
added before portal_activities should be reindexed explicitly.

Only portal_catalog.searchResults supports ignore_unknown_columns, it does not make sense at the level of Products.ZSQLCatalog.SQLCatalog.Query

Since we now have a transaction cache, changes in user assignements are
only taken into account in the next transaction.

It allows user to correctly select the start time and time zone.

It allows to create new DateTime with the same timezone.

remove Base_getURLTopmostDocumentValue (was moved to erp5_xhtml_style in 0bf719d3)

Both erp5.git and slapos.git were moved to lab.nexedi.com, so it is time
to update all links.

Set permission 'Access future portal content' and 'Private only accessible from trusted code' to Manager only

Conflicts:

	product/ERP5/Document/BusinessTemplate.py

PayZen interface expectes all dates in UTC, but suds library is not configurable.
So force UTC usage while importing and using suds, so no date mangling will happen.

Conflicts:
	bt5/erp5_payzen_secure_payment/bt/revision

Do not *reset* them, as it is normal to have more then one Open Sale Order
with same reference, as other coordinates (like validation_state) are used
to distinguish the documents.

Conflicts:
	bt5/erp5_open_trade/bt/revision

The logic of assignments checking shall be easy to use by other plugins in
order to avoid code duplication and minimise risk of non fixed security issues.

Order Builder has same functionality as Devliery Builder.