This Redmine Plugin provides the functionality of TYPO3 Forge Redmine instance as plugin for Redmine so it should be easy to integrate it in new Redmine Versions.
run bundle install to install new gems
To use this plugin, put the content of the repo into plugins/typo3_forge folder.
The changed base layout uses the assets provided by the TYPO3 theme (which needs to go to public/themes/TYPO3.
On first intstallation, you have to run the migrations with rake redmine:plugins:migrate.