[libxml2] (4 commits) Non-fast-forward update to branch ddkilzer/reserve-NUL-termiantor-and-report-errors-consistently-in-xmlBuf-xmlBuffer

[Nick Wellnhofer <nwellnhof src gnome org>]

The branch 'ddkilzer/reserve-NUL-termiantor-and-report-errors-consistently-in-xmlBuf-xmlBuffer' was changed 
in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  f0d4c15... Reserve byte for NUL terminator and report errors consisten

Commits added to the branch:

  65f8a62... Fix reinitialization of library on Windows (*)
  d70e548... Fix xmlCleanupThreads on Windows (*)
  4ce2abf... Fix missing NUL terminators in xmlBuf and xmlBuffer functio (*)
  6ef16de... Reserve byte for NUL terminator and report errors consisten

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