Added Business template to be used in tutorial and updated wendelin-standalone-bind.sh

/reviewed-on nexedi/wendelin!33

Add register form based on erp5_credential bt5.
Create Credential Requst at server side.

/reviewed-on nexedi/wendelin!32

in some project this is required.
Remove obsolete script.

Traceback:

2019-06-18 10:29:39,329 ERROR Application Couldn't install Wendelin
Traceback (most recent call last):
  File "/srv/slapgrid/slappart17/srv/runner/software/48eba2a3dea7ea09294d0e4a58407c09/eggs/Zope2-2.13.29-py2.7.egg/OFS/Application.py", line 660, in install_product
    global_dict, global_dict, silly)
  File "/srv/slapgrid/slappart17/srv/runner/software/48eba2a3dea7ea09294d0e4a58407c09/parts/wendelin/product/Wendelin/__init__.py", line 72, in <module>
    allow_type(pd.DataFrame)
  File "/srv/slapgrid/slappart17/srv/runner/software/48eba2a3dea7ea09294d0e4a58407c09/eggs/AccessControl-2.13.16-py2.7-linux-x86_64.egg/AccessControl/SimpleObjectPolicies.py", line 89, in allow_type
    raise ValueError, "%s handles its own security" % `Type`
ValueError: <class 'pandas.core.frame.DataFrame'> handles its own security

rather than explicitly use directly Zope node.

erp5_wendelin has nowadays its own catalog table thus we need to explicitly tell to created them during configuration phase.

Add test of this functionality.

be a handy way to expose Wendelin.

Tests passing.

/reviewed-on nexedi/wendelin!31

one (and already used in parts of code) as self.REQUEST.

(legacy code still uses it so remain backward compatible).

This reverts commit 416502dc.