Take over the state of frameworks branch into master

We cannot just reset master to point to the frameworks
branch, as then "git push" is prohibited by the server
due to the new master not being a descendant of old master.
To make this work, do a fake merge instead.

Done by:
  git checkout frameworks
  git merge -s ours master

And afterwards make master point to frameworks:
  git checkout master
  git reset --hard frameworks