[tbb/el6/master] (5 commits) ...Sync from devel

[Orion Poplawski]

Summary of changes:

  83f75f3... - New upstream 2.2 - Resolves: #521571 (*)
  a33e0ba... Fix typo that causes a failure to update the common directo (*)
  43fea0c... - Replace mfence instruction with xchg to make it run on ia (*)
  a68e6de... dist-git conversion (*)
  1445bd9... Sync from devel

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