erp5_trade: Fix Order and Packing List print to use Proxyfields not in Meta forms Hide whitespace change

This prevent to have printout failing when erp5_mrp_item is installed
as it extends Base_viewTradeFieldLibrary but do not contain the fields
for these printouts.

Also, do some trivial cleanup

/reviewed-on nexedi/erp5!435

/reviewed-on nexedi/erp5!434

/reviewed-on nexedi/erp5!432

Rework Balance Sheet and Profit and Loss so that they are more consistent with other reports:
 - Ability to choose output format and produce in deferred mode
 - Allow specifying the date range explicitly, for current period and previous period as well. When dates are not specified, the previous behavior of guessing start date and previous date range from accounting periods is kept
 - Style fixes
 - Set a filename for *Save as ...*

Introduce a new feature on Profit and Loss to allow to have instead of the two column layout (used in France mostly):

| INCOME  | EXPENSE |
|---------|---------|
| **1. Revenue** | **1. Operating Expenses** | 
|     - ...... | - ...... | 
|    | - *Cost of Sales* | 
|     | - *Selling, General and Administrative Expenses* | 
|     | - *Other* | 
| **2. Non Operating Income** | **2. Non Operating Expense** | 
|     - ...... | - ...... | 
| **3. Interest Income** | **3. Interest Expense** |
|     - ...... | - ...... | 

Have a one column layout with intermediate profit/loss calculated for each level ( what I call "british layout" here):

| Profit and Loss  |
|---------|
| **1. Operating** |
|  * *Sales* | 
|  * *Operating Expenses* | 
|        - ...... |
|        - Cost of Sales | 
|        - Selling, General and Administrative Expenses | 
|        - Other | 
| **2. Non Operating** |
|  * *Non Operating Income* | 
|        - ...... | 
|  * *Non Operating Expense* |
|        - ...... | 
| 3. **Financial** |
|  * *Interest  Income* |
|        - ...... | 
|  * *Interest Expense* |
|        - ...... | 

This is achieved by putting all that hierarchy in `portal_categories/financial_section/income` and not splitting it in `income` and `expense`. This report will not display `expense` category if it is empty.

Still TODO:
* [x] updating https://www.erp5.com/erp5-HowTo.Select.Accounting.Financial.Section

/reviewed-on nexedi/erp5!284

Making "modified_object_list" consistent by always containing tuples and not
sometimes lists and sometimes tuples.

Also, update the files where they have been used

Using _getOb is always less costly than getattr, as it reduces the need to look in acquisition.

And simplify manage_exportProperties function accordingly

Also, we don't need to look for `transactionless` connection-id here,
as we don't use them in catalog methods.
And, update the files where we can use the new function.

Methods used in PaymentTransactionGroup_view

Always returned Accounting Transaction Lines
(there is no Payment Transaction Line portal type) that were sub-objects of
Payment Transactions. But now they can be also sub-objects of
Accounting Transactions.

So used '...AccountingTransactionLine...' instead of
'...PaymentTransactionLine...'

Previously, this could only be node_uid.
In future we should find a more generic approach to make this configurable.

Also, add two tests to testInventoryAPI to check queries with selection_domain
for getInventoryList and getMovementHistoryList.

/reviewed-on nexedi/erp5!426

- Reindex the support request before add it as HTML Post follow up.
- Use custome message when no post content provided.
This should fix the 502 Proxy error and 400 error when creating a
 new Support Request with/without description.

Use a custom ERP5 script instead global worklist searching.

ckeditor 4.5.3 cannot work properly on Android and iPhone. Before update it to latest
version. We need to check the compatibility issue of other officejs. For now, just use
textarea instead buggy ckeditor.

And update the test for textarea.

Solved issues:
- Restore button didn't work after change listbox.changeState to listbox.render.
- Restore button should restore the listbox to page zero.
- Restore button should be enabled when to refresh the page with expected parameters.

Some listboxes in ERP5 use "| desc" to sort elements, even if it
didn't work (ie: Base_viewEventList/listbox).
Also, as "asc" is working (because descending sort is defined by
whitelist), adding "desc" makes things more consistent

/reviewed-on nexedi/erp5!419

-  close opened tags
-  replace TH with TD for data cells
-  prefix invalid attributes "line" and "column" with "data-"