This avoids crashing the server loop when a signal is received.
Patch by Jerzy Kozera.

Initial patch by Popa Claudiu.

  Patch by Popa Claudiu.

This patch changes a few of the scripts to have __name__=='__main__'
clauses so that they are importable without running.  Also fixes the
syntax errors revealed by the tests.

a multiprocessing Client or Listener with an AF_UNIX type address under
Windows.  Patch by Popa Claudiu.

a multiprocessing Client or Listener with an AF_PIPE type address under
non-Windows platforms.  Patch by Popa Claudiu.

Patch by Suman Saha.