#5052 IP anonymisation enabled by default, users can disable it during installation
Changed some wording
#6579 and #5052 Anonymize IP addresses on 2 bytes by default
Merge branch 'master' into installation_privacy_options
#5052 Enabled IP anonymization by default. To keep it disabled on previous Piwik installs, a migration script disable it on upgrade to 2.9.
#5052 #6566 Added a form on the last installation step that plugins can enrich

The PrivacyManager plugins adds 2 settings to that form to let user disable (enabled by default) DoNotTrack and IP anonymization
Fixed tests
Use placeholders in translations
Prevent access to the last step of the installation if Piwik is already installed

The last step is now also not optional, you need to visit the page to mark installation as finished
Merge pull request #6581 from piwik/installation_privacy_options

Customize privacy options on installation