[doc] replace tabs with spaces (and make linter happy)

[setup] add rdflib-jsonld to dependencies for cubicweb[rdf]

Added tag 3.26.15, debian/3.26.15-1 for changeset fe9bd0e937e4

[pkg] version 3.26.15

[web/views] Backport changeset be63e0fd43d0 (it is a fix) in 3.26

[utils] Add the possibility to add elements in the head of an UStringIO list

[doc] replace python with python3 in shell commands

Added tag 3.27.1, debian/3.27.1-1 for changeset 917601bb5b1b

[pkg] version 3.27.1

Backed out changeset 7d3299d6e655 This is not compatible with python 3.5 and we want to support python 3.5 with cubicweb 3.27

Backed out changeset c69421aece24 This is not compatible with python 3.5 and we want to support python 3.5 with cubicweb 3.27

merge

[web/views/rdf] enhance encoding and formats for RDFView

[web/views/cwuser] fix encoding of FoafView to application/rdf+xml

merge 3.27 into default

[doc/dev/CI] initial information about jenkins

[doc/index] fix link to "how to contribute" and add link to dev dashboard

[doc/book/admin] initial version of deploy cubicweb page in documentation

[doc/book/admin/setup] forget about easy_install

[doc/book/admin/setup] fix pip / virtualenv links

[doc/book/admin/setup] update apt sources

[doc/book/admin/setup] add section about docker install

[doc] remove setup instructions for Windows

[doc/book/devweb/ajax] warning about deprecated use of ajax

[doc] add links to pypi and npm

[doc] remove guestrepo as a recommendation

[doc] remove Subversion mentions

[doc] fix typo

[doc] Update changes title, 3.27 is now released

[pkg] Version 3.28.0.dev0

merge 3.27

Added tag 3.27.0, debian/3.27.0-1 for changeset e77900f19390

[pkg] version 3.27

Backed out changeset b1ef9690f357 This is not compatible with python3.5

Remove useless error FindEntittyError This error is not used since the deprecated find_one_entity method has been removed in 566f8fce5168

[pkg] Version 3.27.0rc3

[sobjects/notification] fix broken email notifications In https://hg.logilab.org/review/cubicweb/rev/8caa109dfe945592a34904bb56971cc57d1c6084 EntityView.w become a method using EntityView._w In notifications we reset "self.w" for every notifications since we handle multiple streams. We should set "self._w" to None instead, otherwise subsequent calls to "self.w()" will fail with TypeError: 'NoneType' object is not callable.

[server.source.native] exceptions should never pass silently

[py] Make flake8 less angry with cubicweb/server/test/

[doc/fix] correct link to screenshots in changelog Closes #17260396

closing branch 3.23

closing branch 3.22

closing branch 3.21

closing branch 3.20

[server/querier] drop ExecutionPlan.annotate_rqlst that is never used

[server.querier] improve docstrings and comments

[mypy] type AppObject.category

[mypy] type Hook.events

[mypy] type __select__ everywhere

[python3] 'unicode' function doesn't exist anymore

[mypy/fix] Incompatible types in assignment (expression has type "staticmethod", variable has type "Callable[[ETag], Any]")

[py] Make flake8 less angry with cubicweb/server/sources/

[mypy/fix] Module 'urllib' has no attribute 'quote'

autopep8

[python3] replace 'unicode' by 'str'

autopep8

[test] ensure FirefoxHelper successfully exited

[test/ux] add a warning when test from FirefoxHelper timeout

[test/fix] tempfile is non portable linux command and is useless here Closes #17260390

[test/fix] prevent FirefoxHelper from silently failing to start This was breaking some tests without any obvious error message and you should fail as early as possible to make debugging easier. Closes #17260390