Zope Page Template cannot export an HTML with tales in appropriated way, so it is used a python script instead to generate initial part of the test.

This change permit via URL (or request) define custom base_url, user and password information when generate a test code. This generation can be always be blocked by redefining such information inside the test body itself.

The code was moved from erp5_ui_test_core

Make sure the script works and update the appropriate image at image module and not an old version.

Master is used by the first slide usually.

Keep some consistency with the names used by all others editors (svg, stylesheet...)

Web Page should be also capable to use Slide Show editor.

This changes permit use URL instead local images all the time.

The book generation using HTML5 Content is a feature shared between Web Page and Test Page. There is no distiction on this 2 portal types for book generation.

Rename forms to use WebPage prefix for the form, due TestPage should focus on Test mostly.

Use same editor from Web Page is appropriate to this.

Use the one provided by erp5_web.

This fixes includes fixes for UTF-8 issues, and the usage of full URLs and/or image reference into image.