Epic #70575

Updated by Benni Mack almost 6 years ago

We want to move "openid", "compatibility6", "mediace" and "jumpurl" " 
 to GitHub and to TER. 

 * Move them into GitHub Repositories 
 * Create a upgrade wizard per extension by checking if it was used before 
 * Move all issues on forge to the GitHub issues 
 * Publish the extensions to TER.