- The interface says that getConversionSize raises a KeyError when this cache
  does not exist. Update implementation accordingly.
- update getConversion to always return a string for the data. The caller
  should not have to worry about the data format.
- warn when an OFS.Image is passed to setConversion

Updating local roles may depend on many things, like categories, and developers
should not be forced to put all dependencies in a separate BT that would be
installed before.

now it is filename, not file_name.

Fix dependency of erp5_simulation_test now that erp5_trade does not depend on erp5_simulation anymore

See also commit af640e28

otherwise Web Section or Web Site without default Web Page does not contain cache related headers.

so that pages rendered as authenticated will never be displayed after logout.

And Chameleon does not workaround by lowercasing them automatically.

Rename title of source_administration field from PaymentTransactionGroupModule_viewPaymentTransactionGroupList

s/Manager/Owner/ to not use technical words

The issue is occured when using inventory document with inventory cache.
Add a test case to make sure this issue has been solved:
  testInventory#test_18_InventoryDocumentAndInventoryCache.

In particular, 'transactional_cached' decorator was a noop the way it was used.

This reapplies commit d806bdae,
along with a fix to test_resolveBusinessTemplateListDependency.

If a listbox show objects with a getQuantity method using a column named
"quantity", this columns must contain 0.0, which is the default value of
getQuantity method.

The use of getProperty with a default value was wrong because it does not
display anything if the property is not set and fallbacks to acquisition.

instead of guessing its name

The new approach is a script named ERP5Site_getWorkflowStateItemList that receives the portal type and the state variable (simulation_state/validation_state) as parameters and it will returns the states for the workflow chained to the portal type. This way all the standard dialogs works out of the box even if you customize a workflow chain

This reverts commit d806bdae.
The test test_resolveBusinessTemplateListDependency
(testTemplateTool.TestTemplateTool) is failing. Please review
change/test, and commit again later once all tests work.