testERP5WebWithDms will pass now as librsvg is well installed now and
assertion on tests were simplied to become more reliable (it provides
less false positives for image comparation).

The functional test testSurchargeWithInvalidDateTime was improved for
better assertions.

This fixes test_getInstancePropertyAndBaseCategoryList
and also removes obsolete 'updatePropertySheetDefinitionDict' methods.

This reverts commit 51d40d1e.

Use colors can generate little diferences at the outcome comparations
between the computers, so black and white is enough for the test purpose,
to compare if the background image is showed or not.

fix svg definition as in some images the namespace is not
well defined by using xmlns="http://www.w3.org/2000/svg" instead
of xmlns:svg="http://www.w3.org/2000/svg"

Those are the cases of the images generated from OO to SVG conversions.

The image comparation isn't advanced enough to identify minor color
 changes when convert to grey scale. So use simpler images to make
sure we do not get false positives.

The goal of image comparation is only for make sure background is
placed at the figures.

With imagemagick providing a good support for rsvg-convert, those failures
are not expected anymore.

This merge include fixes for some functional tests and
testRunMyDocConfiguratorWorkflow.

add test to check that the method getInstancePropertyAndBaseCategoryList returns properties from property sheets correctly

Extend method getInstancePropertyAndBaseCategoryList to be possible get property sheets from portal_type objects i.e portal_types/Foo. And refactor code to get properties from object inside portal_property_sheets i.e SimpleItem, DublinCore

which is not correct.

They duplicate [gs]etDefaultActivateParameterDict on ActiveObject.

This reverts commit 43b1531d.

=> It introduce testERP5Credential regressions

- avoid random failures by stopping relying on calculation time
- really make sure if the cached method is called or not
- make the test much faster by avoiding long calculation that
  are not needed any more

Drop a quite bit amount of code duplication on tests and few others
useless copy & paste duplications.

Those tests are fixed but (specially run my docs), the implementation
is a bit poor.

(cherry picked from commit c55d31d748329c08428e6b49ee87556d48201003)