[cleanup] pylint detected error (among a ton of false positives due to the dynamic nature of cubicweb's code...)

[testlib] extract validation logic into a ``assertWellFormed`` method. This allow validation of document generated without a view.

[migration] add_workflow now ensure the entity type is actually workflowable, and a new make_workflowable migration function is available to make an entity type workflowable (closes #1382720)

unittest2 fix: can't skip test in setUp, but it's fine in setUpClass

[c-c] #1193302: Only show Deprecation warnings when using cubicweb-ctl (not /etc/init.d/cubicweb)

[pyviews] document the fact that content is not xml-escaped (closes #1382038)

[repository, pyro] ensure we're still properly registered into pyro name server in a looping task (closes #1336002)

[web action] refactor box menu handling, fixing #1401943 on the way

[config] use %r instead of %s for cube name makes things clearer

missing future import

[web test] fix authentication test: session cookie should now be computed by the session handler (changed in cw 3.10.6)

[unittest2] update to unittest2 assertRaises api

[server test] fix test inter-dependancy issue

[multi-sources] fix planning of crossed relation w/ some complex queries see ticket #59168 on our extranet for an example symptom.

[idownloadable] oneline view display entity's default title instead of file name, while download box display file name

[deprecation] fix bad warning on entity.querier_pending_relations

[web session] refactor to finally closes #343036: allow _postlogin behaviour overloading

[schema migration] add a test to ensure default value are considered

[schema hook] don't depends on lgc.testlib, hence unittest2 for a dumb mock

[bfss storage] Improve fspath() error message. This changeset improve the error message of fspath when the argument is not managed by a BytesFileSystem storage.

[json controler] extraargs in js_component contains unicode keys which may not be given as argument names

[footer template] refactor to ease addition of some content into the footer

[boxes] add id of the rset to generated dom id of RsetBox to lower chance of id conflict (object id may be reused later)

[doc] fix bad class ref

oops, forgotten to save buffer...

backport stable

[unittest2] use unittest2 module fixture api

[server/test] raise SkipTest from setUpModule instead of setUp( unittest2 behaviour) + kill some deprecation warnings