Eea-similarity

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* Upgrade step: Within "Plone > Site setup > Add-ons" click on
upgrade button available for EEA Similarity
[valipod refs 84915]
* the similarity check is now available on edit pages
[valipod refs 85448]
* the similarity threshold can be passed as parameter
[valipod refs 85448]
* added possibility to turn on check for all content types
[valipod refs 85448]
* button to request the similarity check manually
[valipod refs 85448]
* suggest popup appears even if there are now suggestions (different message)
[valipod refs 85448]
* integrated the suggest popup also for indicators aggregated edit
[valipod refs 85448]

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* Upgrade step: Within "Plone > Site setup > Add-ons" click on
upgrade button available for EEA Similarity
[avoinea refs 84915]
* Change: Add dedicated async quota for similarity jobs
[avoinea refs 84915]
* Change: fixed PyLint warnings and errors
[valipod refs 84949]

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* Feature: add control panel option to show suggestions only after a certain
title length
[valipod refs 84480]
* Change: updated package information
[eduard-fironda]

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* Bug fix: fixed issue with the equivalent sets
[valipod refs 84294]
* Feature: added metadata info to the suggestion dialog
[valipod refs 84294]

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* Bug fix: Remove hard dependency on plone.app.async and eea.versions
[avoinea refs 83163]
* Bug fix: removed hard coded path in the dialog's javascript
[valipod refs 83163]
* Bug fix: added some defaults to the control panel settings
[valipod refs 83163]
* Bug fix: removed mandatory status for some control panel settings
[valipod refs 83163]

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* Bug fix: fixed README markup
[alecghica refs 82296]
* Upgrade step: trigger index generation once (/www/create_idf_index)
Feature: added index update frequency to the registry settings
[valipod refs 83163]