[ltrace/f17] (17 commits) ...Merge branch 'master' into f17

[Petr Machata]

Summary of changes:

  055aded... Fix detach from sleeping process, fix return from tail call (*)
  4fa0e14... Add a patch for singlestep over atomic sequence on PPC (*)
  bd055bc... Fix compilation of lwarx patch (*)
  ee71d18... Add code from upstream libs branch (*)
  17b8f90... Fix 32-bit builds (*)
  e06544f... Check -n argument for validity, fix memory errors, fix over (*)
  c2f892e... Fix the dash-n.patch (*)
  811ce88... Bring in code from upstream revamp branch (*)
  abcce83... BR libtool (*)
  aa961fb... Add upstream patches for parameter passing, add s390 suppor (*)
  9bde653... Look for __cxa_demangle in libstdc++ as well, fix test case (*)
  a6abbf9... - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass (*)
  ba67ad5... PPC64 passes floating point equivalent structures in regist (*)
  f09484d... Sync with upstream (ia64 ABI, -l, bug fixes) (*)
  85e5504... Upstream 0.7.0 (*)
  5bfaa48... Rebase to 0.7.2 (*)
  93524a3... Merge branch 'master' into f17

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