Reduce fragmentation by aggregating chunks when writing.
Aggregation is controlled by two new properties, chunk_size and
max_chunk_size.
Implement defragmentation.

Code tolerates this with no change.
Allows jumping to an existing relation without having to hard-code
(potentially a lot of) portal types.

Also, do not use getBaseCategoryDict to avoid mutating cached value and use
a set rather than a None-value dict.
Also, access portal_categories from portal explicitly rather than relying
on acquisition.

"to split" is an irregular verb.
Also, drop badly-worded comment.

Accelerate debugging by providing relevant values right away.

getPhysicalPath is too slow to be called this often.
Flush cache on object clone, which is only useful as an after-renaming
event here.

Also, avoid a few single-use variables.
Also, use modern exception raising syntax.

This reverts commit 9668c1a1.

The problem of timezone is more complex.
Since this commit have a side effect of saving and displaying a different date
when Zope runs on a different timezone that what is configured on the field, it
is safer to revert this commit immediately.

we should not call getInventoryList if there is no account_type_to_group_by_mirror_section_previous_period

Also fix a problem with title column having a different name in more columns

* sort variations base categories in same order than budget variations
* use same names as budget variations

Mark the test as expected failure for now until work on checkConsistency is done

It is possible to add script Base_getUpgradeBusinessTemplateList to define
the list of business template you would like to keep if needed

Use portal_catalog.upgradeSchema to do all required changes on sql tables. This improve
previous state since before we were only recreating missing tables.

erp5_web_renderjs_ui: remove erp5_query portal skin and different jquery version again, fix broken apps

It was heavy to calculate initial balance of payable / receivable accounts when there are a lot of third parties used in previous period.
The optimisation is applied when "detailed balance columns" option is not enabled.