Code improvement. Review comment by Eric V. Smith
Add fake buildbottouch target.
Add a "skull and crossbones" to Py_AddPendingCall.
- Issue #16041: CVE-2013-1752: poplib: Limit maximum line lengths to 2048 to
  prevent readline() calls from consuming too much member.  Patch by Jyrki
  Pulliainen.
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merge heads
Issue #12641: Avoid passing "-mno-cygwin" to the mingw32 compiler, except when necessary.
Patch by Oscar Benjamin.
Fix typo in NEWS file.
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