add monkeypatched poster 0.8.2, clarify packer error messages
add monkeypatched poster 0.8.2, clarify packer error messages

See http://bugs.python.org/issue5542 for the python bug.  It's "fixed" in
Python 2.7.x / 3.x, but urllib2.urlopen still doesn't handle it correctly.
I changed both the request() and send() behavior to let broken pipes
propagate to urllib2.  Unfortunately urllib2.open also doesn't handle these
correctly either, so I provide an alternate do_open method that checks that
there is a response available post-broken pipe.





thinker0/aurora,wfarner/aurora,apache/aurora,shahankhatch/aurora,mkhutornenko/incubator-aurora,rdelval/aurora,shahankhatch/aurora,rdelval/aurora,medallia/aurora,rosmo/aurora,rosmo/aurora,crashlytics/aurora,wfarner/aurora,crashlytics/aurora,thinker0/aurora,crashlytics/aurora,wfarner/aurora,shahankhatch/aurora,mschenck/aurora,crashlytics/aurora,mkhutornenko/incubator-aurora,apache/aurora,protochron/aurora,kidaa/aurora,rosmo/aurora,thinker0/aurora,rdelval/aurora,mkhutornenko/incubator-aurora,mkhutornenko/incubator-aurora,kidaa/aurora,kidaa/aurora,crashlytics/aurora,protochron/aurora,mschenck/aurora,mschenck/aurora,crashlytics/aurora,apache/aurora,protochron/aurora,protochron/aurora,wfarner/aurora,mschenck/aurora,protochron/aurora,wfarner/aurora,thinker0/aurora,kidaa/aurora,protochron/aurora,rosmo/aurora,mkhutornenko/incubator-aurora,rdelval/aurora,apache/aurora,wfarner/aurora,rosmo/aurora,rosmo/aurora,shahankhatch/aurora,rdelval/aurora,shahankhatch/aurora,thinker0/aurora,medallia/aurora,mschenck/aurora,medallia/aurora,apache/aurora,kidaa/aurora,thinker0/aurora,medallia/aurora,shahankhatch/aurora,apache/aurora,rdelval/aurora,mschenck/aurora,medallia/aurora,medallia/aurora,kidaa/aurora