[erp5_accounting_l10n_cn_basic] Included VAT entries
[erp5_accounting_l10n_cn_basic] Missing basic category
[configurator_standard] Include Chinese language and Basic Accounting

Contributed by Jingjing XU.
tests for account statement with project
Typos
erp5_credential: search login with exact match
new Base_getCurrencyForSectionCategory script

This script is intended to replace Base_getCurrencyForSection and support
properly the case where there are more than one currency.
Start using it in accounting module view and grouping reference dialog.
erp5_accounting: Fix Query parameters and add more explanations about the Query

The category uid should be passed to the query. With this, is possible generate queries like stock.project_uid is NULL.
CRM: Allow to choose the sender when creating a response
ERP5Type.Core.Folder: Expose BTree-style iteritems.
Event_createResponse: keep same behaviour when sender is not passed explicitly
TextDocument: fix incorrect warning
Replace deprecated text_format accessors by content_type
Reorganise html to text tests and add test for html entities
html 2 text: configure w3m not to use ascii equivalent for entities