merge stable changes into default

[testlib] backport some useful testing utilities from tracker's testutils module

[testlib] fix rql generation bug w/ groups given as unicode string

[multi-sources] add missing close method on ConnectionWrapper

[c-c db-check] new checks for entities missing a mandatory relation/attribute

[c-c db-check] factorize code by introducing notify_fixed dumb function

[migration] cleanup corrupted database, pb noticed on several instances

[dataimport] remove eid_key deprecation warning and prints

[config] fix option group clash causing anonymous user configuration to end in the MAIN section instead of the WEB section if cubicweb-dev is installed

[config refactoring] rename eproperty_definition method to cwproperty_definition

allow configuring the level of the configuration settings for cw-ctl add-source and db-init (which may call add-source)

add some tips for users who want to bind to an AD server adjust the level of the different configuration parameters so that the condfiguration becomes usable outside Logilab

[c-c upgrade] rename force-componant-version option to force-cube-version and cleanup code

[repo querier] fix rqlst cache no limit issue, comment the code

[migration] missing future import

backport stable

[source hooks] filter out case where source configuration doesn't have to be reloaded

Added tag cubicweb-debian-version-3.11.0-1 for changeset 8daabda9f571

Added tag cubicweb-version-3.11.0 for changeset 37432cede4fe

[schema sync] we don't want to react on after_update_entity, it may only causes bug. CWUniqueConstraint should be deleted then a fresh one readded on change (as we do in sync_schema_props_perms)

i18n update

[source ui] uicfg tweaks

3.11

[web test] fix some tests broken by recent (and various) changesets notice test_jscript and test_windmill are still broken, a pain to maintain and so breaks apycot test since we can't see state change from green to red (they are always red due to those two tests)

[web/views] add a generic rdf view

backport stable

[testlib pageinfo] extract matching_node method from has_tag to ease looking for a node with a given set of attributes

backport stable

[schema serialization] for relation type, ertidx contains the relation type as string, for relation def, the RelationDefinitionSchema instance

[schema deserialization] enhance fix done in 7010:fa707848a88a to properly deal with cw 3.9 database

[schema deserialization] _unique_together should hold string, not schema instance (may lead to crash during sync_schema_props_perms for instance)

backport stable

cleanup

[web test] ensure we're using proper instance home

backport stable

[config] we should load available configuration before search for an instance configuration

[dbapi] fix for cases where one want to use 'connect' for an in-memory connection

[skel] avoid pylint warning for newly generated cube

[sobjects/parsers] compatibility with xml view of cw <= 3.10

[sobjects/parsers] on validationerror, skip entity and continue processing feed

[web test] fix test name conflict

merge default heads

merge default heads

[tabs] use datadir_url to build image url instead of hardcoding data/

[wdoc] fallback to english title when no translation found

[datafeed] don't crash if python-kerberos isn't installed

[sobjects/parsers] add gssapi auth handler to urllib2 opener applied patch gssapiauth.diff

[data operation] add new remove_data method