replace deprecated Version#completed_pourcent at lib/redmine/helpers/gantt.rb (#12724)

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%4012439
add stderr to config.active_support.deprecation in test and dev env

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%4012440
Rails4 compatibility of stylesheet_link_tag and javascript_include_tag at ApplicationHelper

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%4012441
Adds support for links on values for various custom field formats (#1358).

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extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/trunk%4012442