Delegate external link linkcheck exclusion to sphinx-ignore-links
Merge pull request #269 from sbesson/rebased/develop/linkcheck_parser

Add section about the Sphinx linkcheck output parsing (rebased onto develop)
Merge pull request #271 from sbesson/rebased/develop/external_linkcheck_ignore

Delegate external link linkcheck exclusion to sphinx-ignore-links (rebased onto develop)
Merge pull request #268 from hflynn/user_develop

User docs develop
Fixing webmobile links to will-moore/webmobile. See #9745
Fix redirected link to OMERO features list page
Redirect Matplotlib URL
Fix redirected Github source code links
Fix miscellaneous redirected links
Fix redirected links to OME products downloads pages
Remove unused feature_plone extlink
Remove doi extlink and use jcb link for clients overview page
Additional fixes suggested by Simon
merge develop -D org -I include -E conflict -E needs-fixes -E broken: PR 272 (Fixing webmobile links to will-moore/webmobile. See #9745 (rebased onto develop))
merge develop -D org -I include -E conflict -E needs-fixes -E broken: PR 273 (Redirected links (rebased onto develop))