issue2551189 - increase size of words in full text index. Increased indexed word maxlength to 50 DB migration code is written and tests work. Restructured some tests to allow for code reuse. Docs. If this passes CI without errors 2551189 should be done. However, testing on my system generates errors. Encoding (indexer unicode russian unicode string invalid) and collation errors (utf8_bin not valid) when running under python2. No issues with python3 and I haven't changed code that should cause these since the last successful build in CI. So if this fails in CI we will have more checkins.

Docs
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.. toctree::
   :maxdepth: 2

   docs/features
   docs/installation
   docs/upgrading
   docs/FAQ
   docs/user_guide
   docs/customizing
   docs/admin_guide
   docs/debugging
   docs/xmlrpc
   docs/rest
   docs/tracker_templates
   docs/glossary
   docs/acknowledgements
   docs/license
   Design Overview <docs/overview>
   Design (original) <docs/design>
   docs/developers
   Notes about the MySQL Database backend <docs/mysql>
   Notes about the PostgreSQL Database backend <docs/postgresql>
   Richard Jones implementation notes <docs/implementation>