merge with 3.16.x fixes

[server] fix documentation of ZMQ options

[zmq] set order for ZMQStartHook so other hooks don't need to If an application wants to subscribe to some messages on the zmq bus, that needs to happen after ZMQStartHook.

import merge_options directly from logilab.common

[server] fix error messages in write_sources_file()

[doc] a couple almost-typos

[schemaserial] mitigate critical message during migration We can't fetch extra_props because it is not yet there.

[doc] typo

[cw-ctl] fix help message for schemadiff In global help (closes #2888538) The leading space make it appears on multiple line. The help content is a bit improved in the process.

[dbapi] fix connect backwards compat harder Passing None as group and host should result in "pyro:///cubicweb.appid", not "pyro://None/None.appid". Followup for 2091d275fe5c. Closes #2882666.

[zmq] make publish address optional It should be possible to use the zmq communication bus in a read-only manner. Allow setting zmq-address-sub without zmq-address-pub. Closes #2897178.

Fix documentation for zmq pub/sub hooks and configuration Closes #2897177

[entity] improve deprecation messages

[devtools] use self._parse so AssertionError is properly raised instead of lxml error (test failure introduced in 6711f78c18be)

[testlib] fix page validator selection. Closes #2869456 * use a validator that checks XML well-formness for the html5 doctype (as a convenient side-effect, it does not choke on e.g. a canvas tag like the HTMLParser does) * use a DTD validator if there is an xml declaration * else use the HTMLValidator

[testlib] introduce a validator that check xml-well formness This validator simply check XML is well formed and accept any entities (think HTML defines much more entities than bare XML)

[view] return HTML5 doctype. Closes #2869426 We dropped xhtml support in 3.17 but we kept providing documents using the XHTML strict doctype, while our content wasn't conform to the DTD since we dropped proper namespaces definition as well as declaration of cubicweb DTD extensions.

[testlib] repreprocess content so contextual display has a chance to show the proper line. Closes #2869481 the context is calculated using position information relative to a preprocessed content, not the original source

[web request] drop no more necessary request.document_surrounding_div method This is awful and no more necessary since we dropped xhtml support

[testlib] unspaghettify Validator / PageInfo api

[testlib] update htmlparsers.VALMAP: stop using SaxOnlyValidator and add an entry for html

[testlib] SaxOnlyValidator is deprecated, use XMLValidator instead

[dataimport] minor typo in error handling

[views] attempt to clarify the inline help system documentation

[sobject] fix notification operation regression introduced in bf4003760e02 Operation use self. session. not self._cw. I'm a bit surprised that its not tested. closes ##2870077

Added tag cubicweb-debian-version-3.17.0-2 for changeset 09a0c7ea6c3c

[pkg/debian] prepare release 3.17.0-2

[pkg/debian] update yams runtime depends Only the built depends were updated to 0.37.0.