[extremetuxracer] (8 commits) ...rebuild against new toolchain

[Nils Philippsen]

Summary of changes:

  6eb3914... Initialize branch F-12 for extremetuxracer (*)
  9d81984... Fix typo that causes a failure to update the common directo (*)
  ef554aa... Initialize branch F-13 for extremetuxracer (*)
  09e33cf... dist-git conversion (*)
  5481260... dist-git conversion (*)
  332c5ed... Merge branch 'f13'
  e60bc04... Merge branch 'f12'
  e9a1048... rebuild against new toolchain

(*) This commit already existed in another branch; no separate mail sent